Merchant Hosted Checkout - LazyPay Pay-in-3

To integrate LazyPay Pay-in-3 with Merchant Hosted Checkout integration, start by using the Get Checkout Details API (get_checkout_details) to fetch the eligible payment options available for the customer. This will include the payInParts param in the response if they are eligible. The response will indicate whether the customer is an Pre approved (Existing to Bank or ETB) customer or Not Pre-approved (New to Bank or NTB customer. Make sure to do this before processing the transaction through the Collect Payment API (/_payment) as this will help to check customer's eligibility before making payments call.
If the customer is eligible, proceed with the merchant-hosted collect flow and verify the transaction outcome.

Customer Journey

Customer selects "Pay-in-3" option and enters mobile number
Seamless merchant calls Get Checkout Details API with amount and mobile number
System checks customer eligibility for Pay-in-3
System returns complete repayment schedule will be returned.

You need to show the repayment schedule to the customer, so that they can initiate payment.

For pre-approved customers

Get Checkout Details API returns:
- is_eligible: true
- Down payment amount (pay now amount customer pays during transaction)
- 2nd installment amount and date
- 3rd installment amount and date
- Processing fee and GST (if applicable)

For non pre-approved (NTB) customers

Get Checkout Details API returns eligibility check but does not return tenures for Pay-in-3
Merchant collects additional PI (Personal Information) details from customer:
- Name
- PAN
- Pincode
- Gender
- Consent for bureau pull
Merchant calls Get EMI Checkout Details API with collected PI details
System performs bureau pull and returns:
- Tenures if customer is eligible
- Not eligible status if customer fails eligibility check

Eligible customer clicks "Proceed" on merchant website
Merchant calls _payment API with selected pay mode, that is, Pay-in-3, bankcode: LAZYPI3

📘
Handle Guest Checkout Transaction: You can handle Guest Checkout transactions for EMI and BNPL integrations where applicable. For more information, refer to Cards Integration > Handling Guest Checkout Transactions.

Steps to integrate

1. Check LazyPay Pay in 3 eligibility

Call Get Checkout Details with the right EMI filters and interpret the GCD response (including LAZYPI3) before payment initiation.

2. Initiate the Payment

Start the payment process using the merchant-hosted collect flow

3. Check the Response from PayU

Handle and process the response received from PayU after payment initiation

4. Verify Payment

Confirm the payment status and ensure successful transaction completion

Step 1: Check LazyPay Pay in 3 Eligibility

Step 1a. Check Customer Eligibility (Pay-in-3)

After you collect the Customer's mobile number and the amount , call GCD with the following request parameters. If Eligible, You will get the complete pay in 3 repayment schedule. The sample request and ETB sample response is as follows:

Environment	URL
Production	`https://info.payu.in/merchant/postservice?form=2`
Test	`https://test.payu.in/merchant/postservice?form=2`

Request Parameters

Parameter	Description	Example
key `mandatory`	`String` Merchant key from the PayU Dashboard (masked test style: `JP***g` in samples).	JP***g
command `mandatory`	`String` Must be `get_checkout_details`.	get_checkout_details
var1 `mandatory`	`String` JSON Object containing the fields to check eligibility. For more information, refer to var1 JSON Fields Description	{"requestId":"abc123","transactionDetails":{"amount":500}}
hash `mandatory`	`String` `sha512(key\|command\|var1\|SALT)` — see Hashing request and response. Replace `{{info_hash}}` with the computed digest.	{{info_hash}}

var1 JSON Fields Description

Parameter	Description	Example
key `mandatory`	`String` Merchant key from the PayU Dashboard (masked test style: `JP***g` in samples).	JP***g
command `mandatory`	`String` Must be `get_checkout_details`.	get_checkout_details
var1 `mandatory`	`String` JSON Object containing the fields to check eligibility. For more information, refer to var1 JSON Fields Description	{"requestId":"abc123","transactionDetails":{"amount":500}}
hash `mandatory`	`String` `sha512(key\|command\|var1\|SALT)` — see Hashing request and response. Replace `{{info_hash}}` with the computed digest.	{{info_hash}}

Sample request

curl --location 'https://info.payu.in/merchant/postservice?form=2' \
--header 'Content-Type: application/x-www-form-urlencoded' \
--data-urlencode 'key=JP***g' \
--data-urlencode 'command=get_checkout_details' \
--data-urlencode 'var1={"requestId":"9078698a15d746feadcffbdaf979a198","transactionDetails":{"source":null,"amount":16721,"pre_authorize":null,"additional_charges":null},"useCase":{"checkNTBCustomerEligibility":true,"checkCustomerEligibility":true,"returnUserLimit":true},"customerDetails":{"mobile":"9910522063"},"filters":{"paymentOptions":{"emi":{"dc":"all","cardless":"all"}}}}' \
--data-urlencode 'hash={{info_hash}}'

import requests

url = "https://info.payu.in/merchant/postservice?form=2"

headers = {
    "Content-Type": "application/x-www-form-urlencoded"
}

data = {
    "key": "JP***g",
    "command": "get_checkout_details",
    "var1": '{"requestId":"9078698a15d746feadcffbdaf979a198","transactionDetails":{"source":null,"amount":16721,"pre_authorize":null,"additional_charges":null},"useCase":{"checkNTBCustomerEligibility":true,"checkCustomerEligibility":true,"returnUserLimit":true},"customerDetails":{"mobile":"9910522063"},"filters":{"paymentOptions":{"emi":{"dc":"all","cardless":"all"}}}}',
    "hash": "{{info_hash}}"
}

try:
    response = requests.post(url, headers=headers, data=data)
    print("Status Code:", response.status_code)
    print("Response:", response.text)
except requests.exceptions.RequestException as e:
    print("Error:", e)

using System;
using System.Collections.Generic;
using System.Net.Http;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        var client = new HttpClient();

        var formData = new List<KeyValuePair<string, string>>
        {
            new KeyValuePair<string, string>("key", "JP***g"),
            new KeyValuePair<string, string>("command", "get_checkout_details"),
            new KeyValuePair<string, string>("var1", "{\"requestId\":\"9078698a15d746feadcffbdaf979a198\",\"transactionDetails\":{\"source\":null,\"amount\":16721,\"pre_authorize\":null,\"additional_charges\":null},\"useCase\":{\"checkNTBCustomerEligibility\":true,\"checkCustomerEligibility\":true,\"returnUserLimit\":true},\"customerDetails\":{\"mobile\":\"9910522063\"},\"filters\":{\"paymentOptions\":{\"emi\":{\"dc\":\"all\",\"cardless\":\"all\"}}}}"),
            new KeyValuePair<string, string>("hash", "{{info_hash}}")
        };

        var content = new FormUrlEncodedContent(formData);

        try
        {
            var response = await client.PostAsync("https://info.payu.in/merchant/postservice?form=2", content);
            string responseBody = await response.Content.ReadAsStringAsync();
            Console.WriteLine("Status Code: " + response.StatusCode);
            Console.WriteLine("Response: " + responseBody);
        }
        catch (HttpRequestException e)
        {
            Console.WriteLine("Error: " + e.Message);
        }
    }
}

async function getCheckoutDetails() {
    const url = "https://info.payu.in/merchant/postservice?form=2";

    const formData = new URLSearchParams();
    formData.append("key", "JP***g");
    formData.append("command", "get_checkout_details");
    formData.append("var1", JSON.stringify({
        requestId: "9078698a15d746feadcffbdaf979a198",
        transactionDetails: {
            source: null,
            amount: 16721,
            pre_authorize: null,
            additional_charges: null
        },
        useCase: {
            checkNTBCustomerEligibility: true,
            checkCustomerEligibility: true,
            returnUserLimit: true
        },
        customerDetails: {
            mobile: "9910522063"
        },
        filters: {
            paymentOptions: {
                emi: {
                    dc: "all",
                    cardless: "all"
                }
            }
        }
    }));
    formData.append("hash", "{{info_hash}}");

    try {
        const response = await fetch(url, {
            method: "POST",
            headers: {
                "Content-Type": "application/x-www-form-urlencoded"
            },
            body: formData.toString()
        });

        const data = await response.text();
        console.log("Status Code:", response.status);
        console.log("Response:", data);
    } catch (error) {
        console.error("Error:", error);
    }
}

getCheckoutDetails();

import java.io.*;
import java.net.*;

public class GetCheckoutDetails {
    public static void main(String[] args) {
        try {
            URL url = new URL("https://info.payu.in/merchant/postservice?form=2");
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setRequestMethod("POST");
            conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
            conn.setDoOutput(true);

            String var1 = URLEncoder.encode(
                "{"requestId":"9078698a15d746feadcffbdaf979a198","transactionDetails":{"source":null,"amount":16721,"pre_authorize":null,"additional_charges":null},"useCase":{"checkNTBCustomerEligibility":true,"checkCustomerEligibility":true,"returnUserLimit":true},"customerDetails":{"mobile":"9910522063"},"filters":{"paymentOptions":{"emi":{"dc":"all","cardless":"all"}}}}",
                "UTF-8"
            );

            String formData = "key=" + URLEncoder.encode("JP***g", "UTF-8")
                + "&command=" + URLEncoder.encode("get_checkout_details", "UTF-8")
                + "&var1=" + var1
                + "&hash=" + URLEncoder.encode("{{info_hash}}", "UTF-8");

            try (OutputStream os = conn.getOutputStream()) {
                os.write(formData.getBytes("UTF-8"));
            }

            int statusCode = conn.getResponseCode();
            System.out.println("Status Code: " + statusCode);

            BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
            StringBuilder response = new StringBuilder();
            String line;
            while ((line = reader.readLine()) != null) {
                response.append(line);
            }
            reader.close();

            System.out.println("Response: " + response.toString());

        } catch (Exception e) {
            System.out.println("Error: " + e.getMessage());
        }
    }
}

<?php

$url = "https://info.payu.in/merchant/postservice?form=2";

$postFields = http_build_query([
    "key"     => "JP***g",
    "command" => "get_checkout_details",
    "var1"    => json_encode([
        "requestId"          => "9078698a15d746feadcffbdaf979a198",
        "transactionDetails" => [
            "source"             => null,
            "amount"             => 16721,
            "pre_authorize"      => null,
            "additional_charges" => null
        ],
        "useCase" => [
            "checkNTBCustomerEligibility" => true,
            "checkCustomerEligibility"    => true,
            "returnUserLimit"             => true
        ],
        "customerDetails" => [
            "mobile" => "9910522063"
        ],
        "filters" => [
            "paymentOptions" => [
                "emi" => [
                    "dc"       => "all",
                    "cardless" => "all"
                ]
            ]
        ]
    ]),
    "hash" => "{{info_hash}}"
]);

$ch = curl_init();

curl_setopt_array($ch, [
    CURLOPT_URL            => $url,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_POST           => true,
    CURLOPT_POSTFIELDS     => $postFields,
    CURLOPT_HTTPHEADER     => [
        "Content-Type: application/x-www-form-urlencoded"
    ]
]);

$response = curl_exec($ch);

if (curl_error($ch)) {
    echo "Error: " . curl_error($ch);
} else {
    echo "Status Code: " . curl_getinfo($ch, CURLINFO_HTTP_CODE) . "\n";
    echo "Response: " . $response . "\n";
}

curl_close($ch);
?>

Sample response

✅
The response will provide complete repayment schedule will be returned. You must display this schedule to your customer.

ETB

Scenario: GCD response when the customer is ETB .

{
  "httpCode": "200",
  "message": "",
  "status": 1,
  "data": {
    "details": {
      "paymentOption": {
        "emi": {
          "all": {
            "cardless": {
             ...
             ...
             ...
            }
          },
          "payInParts": {
            "LAZYPI3": {
              "tenure": "3",
              "processingFee": 94.4,
              "processingFeeGst": 14.4,
              "maximumEligibleLimit": 120000.0,
              "eligibility": {
                "status": true
              },
              "repaymentSchedule": [
                {
                  "amount": 4000.0,
                  "serialNo": 0,
                  "dueDate": "2026-06-10"
                },
                {
                  "amount": 4000.0,
                  "serialNo": 1,
                  "dueDate": "2026-08-01"
                },
                {
                  "amount": 4000.0,
                  "serialNo": 2,
                  "dueDate": "2026-09-01"
                }
              ]
            }
          }
        }
      }
    }
  }
}

GCD response — customer is NTB

{
  "httpCode": "200",
  "message": "",
  "status": 1,
  "data": {
    "details": {
      "paymentOption": {
        "emi": {
          "all": {
            "cardless": {
              "all": {
                "IDFCCL": {
                  "tenureOptions": {
                    "IDFCCL12": {
                      "tenure": 12,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "API Time Out"
                      }
                    },
                    "IDFCCL03": {
                      "tenure": 3,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "API Time Out"
                      }
                    },
                    "IDFCCL06": {
                      "tenure": 6,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "API Time Out"
                      }
                    },
                    "IDFCCL09": {
                      "tenure": 9,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "API Time Out"
                      }
                    }
                  },
                  "maximumAmount": null,
                  "eligibility": {
                    "status": false,
                    "reason": "Customer not eligible for EMI"
                  }
                },
                "SMPI3": {
                  "tenureOptions": {
                    "SMPI03": {
                      "tenure": 3,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": true
                      }
                    }
                  },
                  "maximumAmount": null,
                  "eligibility": {
                    "status": true
                  }
                },
                "ZESTMON": {
                  "tenureOptions": {
                    "ZEST09": {
                      "tenure": 9,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "This mobile number is not eligible. Please change the mobile number."
                      }
                    },
                    "ZEST06": {
                      "tenure": 6,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "This mobile number is not eligible. Please change the mobile number."
                      }
                    },
                    "ZEST03": {
                      "tenure": 3,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "This mobile number is not eligible. Please change the mobile number."
                      }
                    },
                    "ZESTMON": {
                      "tenure": 0,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "This mobile number is not eligible. Please change the mobile number."
                      }
                    },
                    "ZEST12": {
                      "tenure": 12,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "This mobile number is not eligible. Please change the mobile number."
                      }
                    }
                  },
                  "maximumAmount": null,
                  "eligibility": {
                    "status": false,
                    "reason": "Customer not eligible for EMI"
                  }
                },
                "ICICCL": {
                  "tenureOptions": {
                    "ICICCL12": {
                      "tenure": 12,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "API Time Out"
                      }
                    },
                    "ICICCL03": {
                      "tenure": 3,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "API Time Out"
                      }
                    },
                    "ICICCL06": {
                      "tenure": 6,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "API Time Out"
                      }
                    },
                    "ICICCL09": {
                      "tenure": 9,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "API Time Out"
                      }
                    }
                  },
                  "maximumAmount": null,
                  "eligibility": {
                    "status": false,
                    "reason": "Customer not eligible for EMI"
                  }
                },
                "HMECDT": {
                  "tenureOptions": {
                    "HMECDT03": {
                      "tenure": 3,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": true
                      },
                      "maximumEligibleLimit": 12000.0
                    },
                    "HMECDT12": {
                      "tenure": 12,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": true
                      },
                      "maximumEligibleLimit": 12000.0
                    },
                    "HMECDT18": {
                      "tenure": 18,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": true
                      },
                      "maximumEligibleLimit": 12000.0
                    },
                    "HMECDT06": {
                      "tenure": 6,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": true
                      },
                      "maximumEligibleLimit": 12000.0
                    },
                    "HMECDT09": {
                      "tenure": 9,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": true
                      },
                      "maximumEligibleLimit": 12000.0
                    }
                  },
                  "maximumAmount": null,
                  "eligibility": {
                    "status": true
                  }
                },
                "LPEMI": {
                  "tenureOptions": {
                    "LPEMI12": {
                      "tenure": 12,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "This mobile number is not eligible. Please change the mobile number."
                      }
                    },
                    "LPEMI": {
                      "tenure": 0,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "This mobile number is not eligible. Please change the mobile number."
                      }
                    },
                    "LPEMI09": {
                      "tenure": 9,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "Minimum required amount is 15000"
                      }
                    },
                    "LPEMI03": {
                      "tenure": 3,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "This mobile number is not eligible. Please change the mobile number."
                      }
                    },
                    "LPEMI06": {
                      "tenure": 6,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "This mobile number is not eligible. Please change the mobile number."
                      }
                    }
                  },
                  "maximumAmount": null,
                  "eligibility": {
                    "status": false,
                    "reason": "Customer not eligible for EMI"
                  }
                },
                "HDFC_CL": {
                  "tenureOptions": {
                    "HDFCCL09": {
                      "tenure": 9,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": true
                      }
                    },
                    "HDFCCL18": {
                      "tenure": 18,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": true
                      }
                    },
                    "HDFCCL06": {
                      "tenure": 6,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": true
                      }
                    },
                    "HDFCCL03": {
                      "tenure": 3,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": true
                      }
                    },
                    "HDFCCL12": {
                      "tenure": 12,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": true
                      }
                    }
                  },
                  "maximumAmount": null,
                  "eligibility": {
                    "status": true
                  }
                }
              },
              "hasEligible": true
            }
          },
          "ntb": {
            "payInParts": {
              "all": {
                "LAZYPI3": {
                  "maximumAmount": null,
                  "eligibility": {
                    "status": true
                  }
                }
              },
              "hasEligible": true
            },
            "cardless": {
              "all": {},
              "hasEligible": false
            }
          }
        }
      }
    }
  }
}

GCD response — customer is not eligible

{
  "httpCode": "200",
  "message": "",
  "status": 1,
  "data": {
    "details": {
      "paymentOption": {
        "emi": {
          "all": {
            "cardless": {
              "all": {
                "IDFCCL": {
                  "tenureOptions": {
                    "IDFCCL12": {
                      "tenure": 12,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "API Time Out"
                      }
                    },
                    "IDFCCL03": {
                      "tenure": 3,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "API Time Out"
                      }
                    },
                    "IDFCCL06": {
                      "tenure": 6,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "API Time Out"
                      }
                    },
                    "IDFCCL09": {
                      "tenure": 9,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "API Time Out"
                      }
                    }
                  },
                  "maximumAmount": null,
                  "eligibility": {
                    "status": false,
                    "reason": "Customer not eligible for EMI"
                  }
                },
                "SMPI3": {
                  "tenureOptions": {
                    "SMPI03": {
                      "tenure": 3,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": true
                      }
                    }
                  },
                  "maximumAmount": null,
                  "eligibility": {
                    "status": true
                  }
                },
                "ZESTMON": {
                  "tenureOptions": {
                    "ZEST09": {
                      "tenure": 9,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "This mobile number is not eligible. Please change the mobile number."
                      }
                    },
                    "ZEST06": {
                      "tenure": 6,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "This mobile number is not eligible. Please change the mobile number."
                      }
                    },
                    "ZEST03": {
                      "tenure": 3,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "This mobile number is not eligible. Please change the mobile number."
                      }
                    },
                    "ZESTMON": {
                      "tenure": 0,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "This mobile number is not eligible. Please change the mobile number."
                      }
                    },
                    "ZEST12": {
                      "tenure": 12,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "This mobile number is not eligible. Please change the mobile number."
                      }
                    }
                  },
                  "maximumAmount": null,
                  "eligibility": {
                    "status": false,
                    "reason": "Customer not eligible for EMI"
                  }
                },
                "ICICCL": {
                  "tenureOptions": {
                    "ICICCL12": {
                      "tenure": 12,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "API Time Out"
                      }
                    },
                    "ICICCL03": {
                      "tenure": 3,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "API Time Out"
                      }
                    },
                    "ICICCL06": {
                      "tenure": 6,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "API Time Out"
                      }
                    },
                    "ICICCL09": {
                      "tenure": 9,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "API Time Out"
                      }
                    }
                  },
                  "maximumAmount": null,
                  "eligibility": {
                    "status": false,
                    "reason": "Customer not eligible for EMI"
                  }
                },
                "HMECDT": {
                  "tenureOptions": {
                    "HMECDT03": {
                      "tenure": 3,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": true
                      },
                      "maximumEligibleLimit": 12000.0
                    },
                    "HMECDT12": {
                      "tenure": 12,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": true
                      },
                      "maximumEligibleLimit": 12000.0
                    },
                    "HMECDT18": {
                      "tenure": 18,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": true
                      },
                      "maximumEligibleLimit": 12000.0
                    },
                    "HMECDT06": {
                      "tenure": 6,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": true
                      },
                      "maximumEligibleLimit": 12000.0
                    },
                    "HMECDT09": {
                      "tenure": 9,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": true
                      },
                      "maximumEligibleLimit": 12000.0
                    }
                  },
                  "maximumAmount": null,
                  "eligibility": {
                    "status": true
                  }
                },
                "LPEMI": {
                  "tenureOptions": {
                    "LPEMI12": {
                      "tenure": 12,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "This mobile number is not eligible. Please change the mobile number."
                      }
                    },
                    "LPEMI": {
                      "tenure": 0,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "This mobile number is not eligible. Please change the mobile number."
                      }
                    },
                    "LPEMI09": {
                      "tenure": 9,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "Minimum required amount is 15000"
                      }
                    },
                    "LPEMI03": {
                      "tenure": 3,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "This mobile number is not eligible. Please change the mobile number."
                      }
                    },
                    "LPEMI06": {
                      "tenure": 6,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": false,
                        "reason": "This mobile number is not eligible. Please change the mobile number."
                      }
                    }
                  },
                  "maximumAmount": null,
                  "eligibility": {
                    "status": false,
                    "reason": "Customer not eligible for EMI"
                  }
                },
                "HDFC_CL": {
                  "tenureOptions": {
                    "HDFCCL09": {
                      "tenure": 9,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": true
                      }
                    },
                    "HDFCCL18": {
                      "tenure": 18,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": true
                      }
                    },
                    "HDFCCL06": {
                      "tenure": 6,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": true
                      }
                    },
                    "HDFCCL03": {
                      "tenure": 3,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": true
                      }
                    },
                    "HDFCCL12": {
                      "tenure": 12,
                      "maximumAmount": null,
                      "eligibility": {
                        "status": true
                      }
                    }
                  },
                  "maximumAmount": null,
                  "eligibility": {
                    "status": true
                  }
                }
              },
              "hasEligible": true
            }
          },
          "payInParts": {
            "LAZYPI3": {
              "tenure": "3",
              "eligibility": {
                "status": false,
                "reason": "This mobile number is not eligible. Please change the mobile number."
              }
            }
          }
        }
      }
    }
  }
}

Step 1b: Check Main Eligibility for NTB Customer

If Get Checkout Details shows the customer is New to the Bank (NTB) for LazyPay Pay-in-3, you must obtain full eligibility using Get EMI Checkout Details (GECD). Collect the required personal information (PI) from the customer and include it in the GECD request to check main eligibility. When the customer is eligible, the response includes the down payment, 2nd and 3rd installment amounts and dates, and any applicable fees (similar to the pre-approved path).

Sample request

curl --location 'https://pp94info.payu.in/info/linkAndPay/get_emi_checkout_details' \
--header 'x-credential-username: x0i6r2' \
--header 'Content-Type: application/json' \
--header 'authorization: {{authorization}}' \
--header 'date: {{date}}' \
--data '{
    "bankCode": "LAZYPI3",
    "phone": "8178959206", 
    "amount": "10000.00",
    "pg": "EMI",
    "checkCustomerEligibilityWithDetails": true,
    "customerDetails": {
        "panNumber": "KMEPS9053J",
        "dob": "14-12-1996",
        "zipcode": "411014",
        "firstName": "Shray",
        "lastName": "Suri",
        "bureauPullConsent": "false",
        "gender": "Male",
        "income": "100000",
        "employeeType": "Salaried"
    }
}'

import requests
import json

url = "https://pp94info.payu.in/info/linkAndPay/get_emi_checkout_details"

headers = {
    "x-credential-username": "x0i6r2",
    "Content-Type": "application/json",
    "authorization": "{{authorization}}",
    "date": "{{date}}"
}

payload = {
    "bankCode": "LAZYPI3",
    "phone": "8178959206",
    "amount": "10000.00",
    "pg": "EMI",
    "checkCustomerEligibilityWithDetails": True,
    "customerDetails": {
        "panNumber": "KMEPS9053J",
        "dob": "14-12-1996",
        "zipcode": "411014",
        "firstName": "Shray",
        "lastName": "Suri",
        "bureauPullConsent": "false",
        "gender": "Male",
        "income": "100000",
        "employeeType": "Salaried"
    }
}

try:
    response = requests.post(url, headers=headers, data=json.dumps(payload))
    print("Status Code:", response.status_code)
    print("Response:", response.text)
except requests.exceptions.RequestException as e:
    print("Error:", e)

using System;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        var client = new HttpClient();

        client.DefaultRequestHeaders.Add("x-credential-username", "x0i6r2");
        client.DefaultRequestHeaders.Add("authorization", "{{authorization}}");
        client.DefaultRequestHeaders.Add("date", "{{date}}");

        var jsonBody = @"{
            ""bankCode"": ""LAZYPI3"",
            ""phone"": ""8178959206"",
            ""amount"": ""10000.00"",
            ""pg"": ""EMI"",
            ""checkCustomerEligibilityWithDetails"": true,
            ""customerDetails"": {
                ""panNumber"": ""KMEPS9053J"",
                ""dob"": ""14-12-1996"",
                ""zipcode"": ""411014"",
                ""firstName"": ""Shray"",
                ""lastName"": ""Suri"",
                ""bureauPullConsent"": ""false"",
                ""gender"": ""Male"",
                ""income"": ""100000"",
                ""employeeType"": ""Salaried""
            }
        }";

        var content = new StringContent(jsonBody, Encoding.UTF8, "application/json");

        try
        {
            var response = await client.PostAsync("https://pp94info.payu.in/info/linkAndPay/get_emi_checkout_details", content);
            string responseBody = await response.Content.ReadAsStringAsync();
            Console.WriteLine("Status Code: " + response.StatusCode);
            Console.WriteLine("Response: " + responseBody);
        }
        catch (HttpRequestException e)
        {
            Console.WriteLine("Error: " + e.Message);
        }
    }
}

async function getEmiCheckoutDetails() {
    const url = "https://pp94info.payu.in/info/linkAndPay/get_emi_checkout_details";

    const payload = {
        bankCode: "LAZYPI3",
        phone: "8178959206",
        amount: "10000.00",
        pg: "EMI",
        checkCustomerEligibilityWithDetails: true,
        customerDetails: {
            panNumber: "KMEPS9053J",
            dob: "14-12-1996",
            zipcode: "411014",
            firstName: "Shray",
            lastName: "Suri",
            bureauPullConsent: "false",
            gender: "Male",
            income: "100000",
            employeeType: "Salaried"
        }
    };

    try {
        const response = await fetch(url, {
            method: "POST",
            headers: {
                "x-credential-username": "x0i6r2",
                "Content-Type": "application/json",
                "authorization": "{{authorization}}",
                "date": "{{date}}"
            },
            body: JSON.stringify(payload)
        });

        const data = await response.text();
        console.log("Status Code:", response.status);
        console.log("Response:", data);
    } catch (error) {
        console.error("Error:", error);
    }
}

getEmiCheckoutDetails();

import java.io.*;
import java.net.*;
import java.nio.charset.StandardCharsets;

public class GetEmiCheckoutDetails {
    public static void main(String[] args) {
        try {
            URL url = new URL("https://pp94info.payu.in/info/linkAndPay/get_emi_checkout_details");
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setRequestMethod("POST");
            conn.setRequestProperty("x-credential-username", "x0i6r2");
            conn.setRequestProperty("Content-Type", "application/json");
            conn.setRequestProperty("authorization", "{{authorization}}");
            conn.setRequestProperty("date", "{{date}}");
            conn.setDoOutput(true);

            String jsonBody = "{"
                + ""bankCode": "LAZYPI3","
                + ""phone": "8178959206","
                + ""amount": "10000.00","
                + ""pg": "EMI","
                + ""checkCustomerEligibilityWithDetails": true,"
                + ""customerDetails": {"
                    + ""panNumber": "KMEPS9053J","
                    + ""dob": "14-12-1996","
                    + ""zipcode": "411014","
                    + ""firstName": "Shray","
                    + ""lastName": "Suri","
                    + ""bureauPullConsent": "false","
                    + ""gender": "Male","
                    + ""income": "100000","
                    + ""employeeType": "Salaried""
                + "}"
            + "}";

            try (OutputStream os = conn.getOutputStream()) {
                os.write(jsonBody.getBytes(StandardCharsets.UTF_8));
            }

            int statusCode = conn.getResponseCode();
            System.out.println("Status Code: " + statusCode);

            BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
            StringBuilder response = new StringBuilder();
            String line;
            while ((line = reader.readLine()) != null) {
                response.append(line);
            }
            reader.close();

            System.out.println("Response: " + response.toString());

        } catch (Exception e) {
            System.out.println("Error: " + e.getMessage());
        }
    }
}

<?php

$url = "https://pp94info.payu.in/info/linkAndPay/get_emi_checkout_details";

$payload = json_encode([
    "bankCode"                           => "LAZYPI3",
    "phone"                              => "8178959206",
    "amount"                             => "10000.00",
    "pg"                                 => "EMI",
    "checkCustomerEligibilityWithDetails" => true,
    "customerDetails"                    => [
        "panNumber"         => "KMEPS9053J",
        "dob"               => "14-12-1996",
        "zipcode"           => "411014",
        "firstName"         => "Shray",
        "lastName"          => "Suri",
        "bureauPullConsent" => "false",
        "gender"            => "Male",
        "income"            => "100000",
        "employeeType"      => "Salaried"
    ]
]);

$ch = curl_init();

curl_setopt_array($ch, [
    CURLOPT_URL            => $url,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_POST           => true,
    CURLOPT_POSTFIELDS     => $payload,
    CURLOPT_HTTPHEADER     => [
        "x-credential-username: x0i6r2",
        "Content-Type: application/json",
        "authorization: {{authorization}}",
        "date: {{date}}"
    ]
]);

$response = curl_exec($ch);

if (curl_error($ch)) {
    echo "Error: " . curl_error($ch);
} else {
    echo "Status Code: " . curl_getinfo($ch, CURLINFO_HTTP_CODE) . "\n";
    echo "Response: " . $response . "\n";
}

curl_close($ch);
?>

Sample response

Success scenario

Response when registration got success

{
  "httpCode": "200",
  "message": "",
  "status": 1,
  "data": {
    "emi": {
      "ntb": {
        "payInParts": {
          "LAZYPI3": {
            "tenure": "3",
            "minimumAmount": 3000.0,
            "maximumAmount": 180000.0,
            "interestRate": 0,
            "processingFee": 78.67,
            "processingFeeGst": 12.0,
            "maximumEligibleLimit": 51000.0,
            "eligibility": {
              "status": true
            },
            "repaymentSchedule": [
              {
                "amount": 3333.33,
                "serialNo": 0,
                "dueDate": "2026-06-10"
              },
              {
                "amount": 3333.0,
                "serialNo": 1,
                "dueDate": "2026-08-01"
              },
              {
                "amount": 3333.67,
                "serialNo": 2,
                "dueDate": "2026-09-01"
              }
            ]
          }
        }
      }
    }
  }
}

Failure scenario

When registration got failed:

{
  "httpCode": "200",
  "message": "",
  "status": 1,
  "data": {
    "emi": {
      "ntb": {
        "payInParts": {
          "LAZYPI3": {
            "eligibility": {
              "status": false,
              "reason": "This mobile number is not eligible. Please change the mobile number."
            }
          }
        }
      }
    }
  }
}

Step 2: Initiate the payment

Post the following additional parameters for using the Cardless EMI. Check the response when you try enter the values in API Reference. For complete list of parameters, refer to Collect Payment API - EMI for the complete list parameters with Try It experience.

Request Parameters

Request parameters

Parameter	Description	Example
key `mandatory`	`String` Merchant key provided by PayU during onboarding.	JP****g
txnid `mandatory`	`String` The transaction ID is a reference number for a specific order that is generated by the merchant.
amount `mandatory`	`String` The payment amount for the transaction.
productinfo `mandatory`	`String` A brief description of the product.
firstname `mandatory`	`String` The first name of the customer.	Ashish
email `mandatory`	`String` The email address of the customer.	[email protected]
phone `mandatory`	`String` The phone number of the customer.
pg `mandatory`	`String` It defines the payment category that the merchant wants the customer to see by default on the PayU's payment page. In this integration, "EMI" must be specified.	EMI
bankcode `mandatory`	`String` Post this parameter with the values as LAZYPI3.	LAZYPI3
furl `mandatory`	`String` The success URL, which is the page PayU will redirect to if the transaction is successful.
surl `mandatory`	`String` The Failure URL, which is the page PayU will redirect to if the transaction is failed.
hash `mandatory`	`String` It is the hash calculated by the merchant. The hash calculation logic is: `sha512(key\|txnid\|amount\|productinfo\|firstname\|email\|udf1\|udf2\|udf3\|udf4\|udf5\|\|\|\|\|\|SALT)`
address1 `optional`	`String` The first line of the billing address. For Fraud Detection: This information is helpful when it comes to issues related to fraud detection and chargebacks. Hence, it is must to provide the correct information.
address2 `optional`	`String` The second line of the billing address.
city `optional`	`String` The city where your customer resides as part of the billing address.
state `optional`	`String` The state where your customer resides as part of the billing address.
country `optional`	`String` The country where your customer resides.
zipcode `optional`	`String` Billing address zip code is mandatory for the cardless EMI option. `Character Limit`-20
udf1 `optional`	`String` User-defined fields (udf) are used to store any information corresponding to a particular transaction. You can use up to five udfs in the post designated as udf1, udf2, udf3, udf4, udf5.
udf2 `optional`	`String` User-defined fields (udf) are used to store any information corresponding to a particular transaction. You can use up to five udfs in the post designated as udf1, udf2, udf3, udf4, udf5.
udf3 `optional`	`String` User-defined fields (udf) are used to store any information corresponding to a particular transaction.
udf4 `optional`	`String` User-defined fields (udf) are used to store any information corresponding to a particular transaction.
udf5 `optional`	`String` User-defined fields (udf) are used to store any information corresponding to a particular transaction.

Hashing

You must hash the request parameters using the following hash logic:

sha512(key|txnid|amount|productinfo|firstname|email|udf1|udf2|udf3|udf4|udf5||||||SALT)

For more information, refer to Generate Hash.

Sample request

curl -X POST “https://test.payu.in/_payment” -H “accept: application/json” -H “Content-Type: application/x-www-form-urlencoded” -d”key=JP***g&txnid=EaE4ZO3vU4iPsp&amount=10.00&firstname=Ashish&[email protected]&phone=9876543210&productinfo=iPhone&pg=EMI&bankcode=LAZYPI3&surl=https://apiplayground-response.herokuapp.com/&furl=https://apiplayground-response.herokuapp.com/&hash=fc3206829a6b4f8e300aeefb8f91add568b83dc90d01383a8e16553cc9600a3aefd4be2e370d32f0315ef1b9f28740515a9556b55abfefa7b54b434f894c9304”

/**
 * PayU Cardless EMI Payment Integration using Fetch API
 * 
 * IMPORTANT: This should only be executed server-side (e.g., in Node.js), never in the browser,
 * as it contains sensitive payment information.
 */

// Payment endpoint
const url = 'https://test.payu.in/_payment';

// Form data parameters
const formData = new URLSearchParams();
formData.append('key', 'JP***g');                  // Your merchant key
formData.append('txnid', 'EaE4ZO3vU4iPsp');       // Unique transaction ID
formData.append('amount', '10.00');               // Payment amount
formData.append('firstname', 'Ashish');           // Customer's name
formData.append('email', '[email protected]');       // Customer's email
formData.append('phone', '9876543210');           // Customer's phone
formData.append('productinfo', 'iPhone');         // Product information
formData.append('pg', 'EMI');                     // Payment gateway (EMI)
formData.append('bankcode', 'LAZYPI3');           // Bank code
formData.append('surl', 'https://apiplayground-response.herokuapp.com/'); // Success URL
formData.append('furl', 'https://apiplayground-response.herokuapp.com/'); // Failure URL
// Security hash
formData.append('hash', 'fc3206829a6b4f8e300aeefb8f91add568b83dc90d01383a8e16553cc9600a3aefd4be2e370d32f0315ef1b9f28740515a9556b55abfefa7b54b434f894c9304');

// Request options
const requestOptions = {
  method: 'POST',
  headers: {
    'accept': 'application/json',
    'Content-Type': 'application/x-www-form-urlencoded'
  },
  body: formData
};

// Execute the request
fetch(url, requestOptions)
  .then(response => {
    console.log('Status Code:', response.status);
    return response.text(); // or response.json() if you're sure it returns JSON
  })
  .then(data => {
    console.log('Response:', data);
    // Process payment response here
  })
  .catch(error => {
    console.error('Error:', error);
  });

import urllib.request
import urllib.parse
from typing import Dict, Any

def process_cardless_emi_payment() -> Dict[str, Any]:
    """
    Process cardless EMI payment using PayU's Merchant Hosted Checkout
    
    IMPORTANT: This is a server-side function. Never expose payment details to client-side code.
    
    Returns:
        Dictionary with response from PayU API
    """
    # API endpoint
    url = "https://test.payu.in/_payment"
    
    # Prepare the form data
    payload = {
        "key": "JP***g",                     # Your merchant key
        "txnid": "EaE4ZO3vU4iPsp",           # Unique transaction ID
        "amount": "10.00",                   # Payment amount
        "firstname": "Ashish",               # Customer's name
        "email": "[email protected]",           # Customer's email
        "phone": "9876543210",               # Customer's phone
        "productinfo": "iPhone",             # Product information
        "pg": "EMI",                         # Payment gateway (EMI)
        "bankcode": "LAZYPI3",               # Bank code
        "surl": "https://apiplayground-response.herokuapp.com/", # Success URL
        "furl": "https://apiplayground-response.herokuapp.com/", # Failure URL
        # Security hash
        "hash": "fc3206829a6b4f8e300aeefb8f91add568b83dc90d01383a8e16553cc9600a3aefd4be2e370d32f0315ef1b9f28740515a9556b55abfefa7b54b434f894c9304"
    }
    
    # Convert dictionary to URL-encoded form data
    data = urllib.parse.urlencode(payload).encode('utf-8')
    
    # Set headers
    headers = {
        "accept": "application/json",
        "Content-Type": "application/x-www-form-urlencoded"
    }
    
    # Create a request object
    req = urllib.request.Request(url, data=data, headers=headers, method="POST")
    
    try:
        # Send the request and get the response
        with urllib.request.urlopen(req) as response:
            response_data = response.read().decode('utf-8')
            
            # Process and return response
            return {
                "status_code": response.getcode(),
                "response": response_data
            }
            
    except urllib.error.HTTPError as e:
        # Handle HTTP errors
        error_data = e.read().decode('utf-8')
        return {
            "status_code": e.code,
            "error": e.reason,
            "response": error_data
        }
        
    except Exception as e:
        # Handle other exceptions
        return {
            "status_code": 500,
            "error": str(e),
            "response": "An error occurred during payment processing"
        }

# Example usage
if __name__ == "__main__":
    result = process_cardless_emi_payment()
    print(f"Status Code: {result['status_code']}")
    if 'error' in result:
        print(f"Error: {result['error']}")
    print(f"Response: {result['response']}")

<?php
/**
 * Process cardless EMI payment using PayU's Merchant Hosted Checkout
 * 
 * IMPORTANT: This is a server-side function. Never expose payment details to client-side code.
 * 
 * @return array Response from PayU API
 */
function processCardlessEmiPayment() {
    // API endpoint
    $url = "https://test.payu.in/_payment";
    
    // Prepare the form data
    $payload = [
        "key" => "JP***g",                      // Your merchant key
        "txnid" => "EaE4ZO3vU4iPsp",            // Unique transaction ID
        "amount" => "10.00",                    // Payment amount
        "firstname" => "Ashish",                // Customer's name
        "email" => "[email protected]",            // Customer's email
        "phone" => "9876543210",                // Customer's phone
        "productinfo" => "iPhone",              // Product information
        "pg" => "EMI",                          // Payment gateway (EMI)
        "bankcode" => "LAZYPI3",                // Bank code
        "surl" => "https://apiplayground-response.herokuapp.com/", // Success URL
        "furl" => "https://apiplayground-response.herokuapp.com/", // Failure URL
        // Security hash
        "hash" => "fc3206829a6b4f8e300aeefb8f91add568b83dc90d01383a8e16553cc9600a3aefd4be2e370d32f0315ef1b9f28740515a9556b55abfefa7b54b434f894c9304"
    ];
    
    // Initialize cURL session
    $ch = curl_init($url);
    
    // Set cURL options
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($payload));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_HTTPHEADER, [
        "accept: application/json",
        "Content-Type: application/x-www-form-urlencoded"
    ]);
    
    // For additional security in production
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
    
    // Execute the request
    $response = curl_exec($ch);
    $statusCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    $error = curl_error($ch);
    $errno = curl_errno($ch);
    
    // Close cURL session
    curl_close($ch);
    
    // Handle response
    if ($errno) {
        return [
            "status_code" => 500,
            "error" => $error,
            "response" => "cURL Error: " . $error
        ];
    }
    
    return [
        "status_code" => $statusCode,
        "response" => $response
    ];
}

// Example usage
$result = processCardlessEmiPayment();
echo "Status Code: " . $result["status_code"] . "\n";
if (isset($result["error"])) {
    echo "Error: " . $result["error"] . "\n";
}
echo "Response: " . $result["response"] . "\n";
?>

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.Map;
import java.util.StringJoiner;

/**
 * PayU Cardless EMI Payment Processor for Merchant Hosted Checkout
 * 
 * IMPORTANT: This is a server-side implementation. Never expose payment details to client-side code.
 */
public class PayUCardlessEmiPaymentProcessor {
    
    // API endpoint
    private static final String PAYU_TEST_URL = "https://test.payu.in/_payment";
    
    /**
     * Process cardless EMI payment through PayU
     * @return PaymentResponse containing status and response data
     */
    public PaymentResponse processCardlessEmiPayment() {
        try {
            // Initialize URL
            URL url = new URL(PAYU_TEST_URL);
            
            // Prepare form parameters
            Map<String, String> params = new HashMap<>();
            params.put("key", "JP***g");                      // Your merchant key
            params.put("txnid", "EaE4ZO3vU4iPsp");            // Unique transaction ID
            params.put("amount", "10.00");                    // Payment amount
            params.put("firstname", "Ashish");                // Customer's name
            params.put("email", "[email protected]");            // Customer's email
            params.put("phone", "9876543210");                // Customer's phone
            params.put("productinfo", "iPhone");              // Product information
            params.put("pg", "EMI");                          // Payment gateway (EMI)
            params.put("bankcode", "LAZYPI3");                // Bank code
            params.put("surl", "https://apiplayground-response.herokuapp.com/"); // Success URL
            params.put("furl", "https://apiplayground-response.herokuapp.com/"); // Failure URL
            // Security hash
            params.put("hash", "fc3206829a6b4f8e300aeefb8f91add568b83dc90d01383a8e16553cc9600a3aefd4be2e370d32f0315ef1b9f28740515a9556b55abfefa7b54b434f894c9304");
            
            // Convert parameters to URL-encoded form data
            StringJoiner formData = new StringJoiner("&");
            for (Map.Entry<String, String> entry : params.entrySet()) {
                formData.add(URLEncoder.encode(entry.getKey(), "UTF-8") + "=" + 
                             URLEncoder.encode(entry.getValue(), "UTF-8"));
            }
            byte[] postData = formData.toString().getBytes(StandardCharsets.UTF_8);
            
            // Configure connection
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setRequestMethod("POST");
            conn.setRequestProperty("accept", "application/json");
            conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
            conn.setRequestProperty("Content-Length", String.valueOf(postData.length));
            conn.setDoOutput(true);
            conn.setConnectTimeout(5000);
            conn.setReadTimeout(15000);
            
            // Send request
            try (DataOutputStream dos = new DataOutputStream(conn.getOutputStream())) {
                dos.write(postData);
                dos.flush();
            }
            
            // Get response
            int responseCode = conn.getResponseCode();
            
            // Read response data
            StringBuilder response = new StringBuilder();
            try (BufferedReader reader = new BufferedReader(
                    new InputStreamReader(
                        responseCode >= 400 ? conn.getErrorStream() : conn.getInputStream(), 
                        StandardCharsets.UTF_8))) {
                        
                String line;
                while ((line = reader.readLine()) != null) {
                    response.append(line);
                }
            }
            
            return new PaymentResponse(responseCode, response.toString(), null);
            
        } catch (IOException e) {
            // Handle exception
            return new PaymentResponse(500, null, "Error: " + e.getMessage());
        }
    }
    
    /**
     * Payment response wrapper class
     */
    public static class PaymentResponse {
        private final int statusCode;
        private final String response;
        private final String error;
        
        public PaymentResponse(int statusCode, String response, String error) {
            this.statusCode = statusCode;
            this.response = response;
            this.error = error;
        }
        
        public int getStatusCode() {
            return statusCode;
        }
        
        public String getResponse() {
            return response;
        }
        
        public String getError() {
            return error;
        }
        
        public boolean isSuccess() {
            return statusCode >= 200 && statusCode < 300;
        }
    }
    
    // Example usage
    public static void main(String[] args) {
        PayUCardlessEmiPaymentProcessor processor = new PayUCardlessEmiPaymentProcessor();
        PaymentResponse result = processor.processCardlessEmiPayment();
        
        System.out.println("Status Code: " + result.getStatusCode());
        if (result.isSuccess()) {
            System.out.println("Response: " + result.getResponse());
        } else {
            System.out.println("Error: " + result.getError());
        }
    }
}

using System;
using System.Collections.Generic;
using System.Net.Http;
using System.Threading.Tasks;

namespace PayUCardlessEmiIntegration
{
    /// <summary>
    /// PayU Cardless EMI Payment Processor for Merchant Hosted Checkout
    /// 
    /// IMPORTANT: This is a server-side implementation. Never expose payment details to client-side code.
    /// </summary>
    public class PayUCardlessEmiPaymentProcessor
    {
        // API endpoint
        private const string PayuTestUrl = "https://test.payu.in/_payment";
        
        /// <summary>
        /// Process cardless EMI payment through PayU
        /// </summary>
        /// <returns>PaymentResponse containing status and response data</returns>
        public async Task<PaymentResponse> ProcessCardlessEmiPaymentAsync()
        {
            try
            {
                // Prepare form parameters
                var formData = new Dictionary<string, string>
                {
                    { "key", "JP***g" },                       // Your merchant key
                    { "txnid", "EaE4ZO3vU4iPsp" },             // Unique transaction ID
                    { "amount", "10.00" },                     // Payment amount
                    { "firstname", "Ashish" },                 // Customer's name
                    { "email", "[email protected]" },             // Customer's email
                    { "phone", "9876543210" },                 // Customer's phone
                    { "productinfo", "iPhone" },               // Product information
                    { "pg", "EMI" },                           // Payment gateway (EMI)
                    { "bankcode", "LAZYPI3" },                 // Bank code
                    { "surl", "https://apiplayground-response.herokuapp.com/" }, // Success URL
                    { "furl", "https://apiplayground-response.herokuapp.com/" }, // Failure URL
                    // Security hash
                    { "hash", "fc3206829a6b4f8e300aeefb8f91add568b83dc90d01383a8e16553cc9600a3aefd4be2e370d32f0315ef1b9f28740515a9556b55abfefa7b54b434f894c9304" }
                };
                
                // Create HttpClient with timeout
                using (var httpClient = new HttpClient())
                {
                    httpClient.Timeout = TimeSpan.FromSeconds(30);
                    
                    // Convert form data to content
                    var content = new FormUrlEncodedContent(formData);
                    
                    // Add headers
                    content.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("application/x-www-form-urlencoded");
                    httpClient.DefaultRequestHeaders.Add("accept", "application/json");
                    
                    // Send POST request
                    var response = await httpClient.PostAsync(PayuTestUrl, content);
                    
                    // Get response content
                    var responseContent = await response.Content.ReadAsStringAsync();
                    
                    return new PaymentResponse(
                        (int)response.StatusCode,
                        responseContent,
                        null
                    );
                }
            }
            catch (Exception ex)
            {
                // Handle exception
                return new PaymentResponse(
                    500,
                    null,
                    $"Error: {ex.Message}"
                );
            }
        }
        
        /// <summary>
        /// Payment response wrapper class
        /// </summary>
        public class PaymentResponse
        {
            public int StatusCode { get; }
            public string Response { get; }
            public string Error { get; }
            
            public PaymentResponse(int statusCode, string response, string error)
            {
                StatusCode = statusCode;
                Response = response;
                Error = error;
            }
            
            public bool IsSuccess => StatusCode >= 200 && StatusCode < 300;
        }
    }
    
    // Example usage
    class Program
    {
        static async Task Main(string[] args)
        {
            var processor = new PayUCardlessEmiPaymentProcessor();
            var result = await processor.ProcessCardlessEmiPaymentAsync();
            
            Console.WriteLine($"Status Code: {result.StatusCode}");
            if (result.IsSuccess)
            {
                Console.WriteLine($"Response: {result.Response}");
            }
            else
            {
                Console.WriteLine($"Error: {result.Error}");
            }
        }
    }
}

Step 3: Check the response from PayU

Sample response

Array
(
    [mihpayid] => 403993715523602563
    [status] => success
    [unmappedstatus] => captured
    [key] => smsplus
    [txnid] => v2tWbbdUOuacK9
    [amount] => 20000.00
    [discount] => 0.00
    [net_amount_debit] => 20000.00
    [addedon] => 2021-07-27 11:14:44
    [productinfo] => iPhone
    [firstname] => Ashish
    [lastname] => 
    [address1] => 
    [address2] => 
    [city] => 
    [state] => 
    [country] => 
    [zipcode] => 
    [email] => [email protected]
    [phone] => 1234567890
    [udf1] => 
    [udf2] => 
    [udf3] => 
    [udf4] => 
    [udf5] => 
    [udf6] => 
    [udf7] => 
    [udf8] => 
    [udf9] => 
    [udf10] => 
    [hash] => 10f8ead10cdf5f9b7bf9046987de046d63d62d6679dded9d5da8145f459066943570eec4aa184494ae77f99a8bcd55452af3c4eff0d7a7d3ba809c97b7c73045
[field1] => 0608273386032718000015
    [field2] => 986987
    [field3] => 10.00
    [field4] => 403993715524069222
    [field5] => 100
    [field6] => 02
    [field7] => AUTHPOSITIVE
    [field8] => 
    [field9] => Transaction is Successful    [payment_source] => payu
    [PG_TYPE] => EMI-PG
    [bank_ref_num] => 3d7cc4a4-00c8-4705-a0e7-5708d2c2bb75
    [bankcode]=> EMIA3
    [error] => E000
    [error_Message] => No Error
    [name_on_card] => payu
    [cardnum] =>XXXXXXXXXXXX1234
)

Step 4: Verify Payment

Upon receiving the response, PayU recommends you performing a reconciliation step to validate all transaction details.

You can verify your payments using either of the following methods:

Configure the webhooks to monitor the status of payments.
Webhooks enable a server to communicate with another server by sending an HTTP callback or message.
These callbacks are triggered by specific events or instances and operate at the server-to-server (S2S) level.

Know how to manage Webhooks for Payments.

Environment


Test Environment	https://test.payu.in/merchant/postservice.php?form=2
Production Environment	https://info.payu.in/merchant/postservice.php?form=2

Note: The hash logic for Verify Payment API is:
sha512(key|command|var1|salt) sha512

Sample request

curl --request POST
--url 'https://test.payu.in/merchant/postservice?form=2'
--header 'Content-Type: application/x-www-form-urlencoded'
--data key=JPM7Fg
--data command=verify_payment
--data var1=IhfgcZnXR4o4nB
--data hash=a0ae79fdd66c875af6e9b21c4a67f1822deb00f2df5e9f0b1948f3222f536a9bf741b24efbb1874ca0f84f76b036e6c0d641581d0100f7abe4aeed2f3264f5c9

Sample response

If credit card payment is made, the response is similar to the following:

{
  "status":0,
  "msg":"0 out of 1 Transactions Fetched Successfully",
  "transaction_details":
{
"IhfgcZnXR4o4nB":
{
"mihpayid":"Not Found",
"status":"Not Found"
}
}
}

If txnID is not found, the response is similar to the following:


{
    "status":0,
    "msg":"0 out of 1 Transactions Fetched Successfully",
      "transaction_details":
      {	
                      "IhfgcZnXR4o4nB":
        {
                              "mihpayid":"Not Found",
            "status":"Not Found"
          }
                      }
}

Response parameters

Parameter	Description	Example
status	This parameter returns the status of web service call. The status can be any of the following: 0 - If web service call failed. 1 - If web service call succeeded	0
msg	This parameter returns the reason string.	For example, any of the following messages are displayed: Parameter missing Token is empty Amount is empty Transaction not exists
transaction_details	This parameter contains the response in a JSON format. For more information refer to JSON fields description for transaction_details parameter .
request_id	PayU Request ID for a request in a Transaction. For example, a transaction can have a refund request.	7800456
bank_ref_num	This parameter returns the bank reference number. If the bank provides after a successful action.	204519474956

To learn more about the possible error codes and their description, refer to Error Codes.

Updated 4 days ago

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Customer Journey

For pre-approved customers

For non pre-approved (NTB) customers

Step 1: Check LazyPay Pay in 3 Eligibility

Step 1a. Check Customer Eligibility (Pay-in-3)

var1 JSON Fields Description

Sample response

The response will provide complete repayment schedule will be returned. You must display this schedule to your customer.

Step 1b: Check Main Eligibility for NTB Customer

Success scenario

Failure scenario

Step 2: Initiate the payment

Request Parameters

Hashing

Sample request

Step 3: Check the response from PayU

Step 4: Verify Payment

EXAMPLE QUESTIONS