Change UPI PIN

curl -X PATCH 'api.rzp..com/v1/upi/tpap/fundsources/:id/upi_pin?expand[]=vpas' \
-u [YOUR_KEY_ID]:[YOUR_SECRET] \
-H "Content-type: application/json" \
-H "x-device-fingerprint: " \
-H "x-device-fingerprint-timestamp: 1496918882000" \
-H "x-customer-reference: customer-id-from-customer" \
-d '{
  "upi_transaction_id":"123qwert12",
  "upi_credentials":{
      // credentials received from WebCL 
  },
  "vpa":"abc@upiexample",
  "device":{
    "geocode":"1234.1213",
    "ip":"198.1.1.1"
    }
  }'

{
  "entity":"upi.fundsource",
  "id":"fs_1234",
  "type":"savings",
  "customer_name":"name",
  "masked_account_number":"xx9987",
  "ifsc":"IFSC001",
  "upi_pin_set":true,
  "upi_pin_length":4,
  "otp_length":4,
  "atm_pin_length":4,
  "fundsource_provider":{
    "name":"HDFC Bank",
    "upi_iin":"600007",
    "upi_enabled":false,
    "mobile_registration_format":"format1",
    "logo_url":""
  },
  "vpas":{
    "entity":"collection",
    "count":1,
    "items":[
      {
        "mobile":"9999999999",
        "address":"anc@handle",
        "status":"active",
        "primary":true
      }
    ]
  }
}