POSTValidate Sender Aadhaar OTP

Verify the Aadhaar OTP for a DMT Levin sender to complete identity validation.

POST/customer/payment/dmt-levin/sender/{customer_id}/aadhaar/otp/verify

Validates the OTP received on the sender's Aadhaar-linked mobile number in the DMT Levin flow. Use intent_id: 20 for Aadhaar validation (as opposed to intent_id: 19 for sender onboarding). On success, the sender's identity is confirmed and their DMT Levin wallet profile is updated.

Path parameters

Field	Type	Required	Description
`customer_id`	string	required	Sender's mobile number.e.g. 9876543210

customer_idstringRequired

Sender's mobile number.

example: 9876543210

Body parameters

Field	Type	Required	Description
`initiator_id`	string	required	Registered mobile number of the API user (see Platform Credentials).e.g. 9962981729
`user_code`	string	required	User code of the retailer/agent the service is run for.e.g. 20810200
`client_ref_id`	string	optional	Unique reference id per API call, generated by your system.e.g. REQ-20260101-001
`otp`	integer	optional	OTP received on the Aadhaar-linked mobile number.e.g. 123456
`otp_ref_id`	integer	required	Reference ID from the Validate Aadhaar (DMT Levin) response.e.g. 93847201
`intent_id`	string	optional	Set to "19" for sender onboarding or "20" for Aadhaar validation.e.g. 20
`additional_info`	string	optional	Additional info flag. Defaults to 1.e.g. 1

initiator_idstringRequired

Registered mobile number of the API user (see Platform Credentials).

example: 9962981729

user_codestringRequired

User code of the retailer/agent the service is run for.

example: 20810200

client_ref_idstringoptional

Unique reference id per API call, generated by your system.

example: REQ-20260101-001

otpintegeroptional

OTP received on the Aadhaar-linked mobile number.

example: 123456

otp_ref_idintegerRequired

Reference ID from the Validate Aadhaar (DMT Levin) response.

example: 93847201

intent_idstringoptional

Set to "19" for sender onboarding or "20" for Aadhaar validation.

example: 20

additional_infostringoptional

Additional info flag. Defaults to 1.

example: 1

Headers

Field	Type	Required	Description
`developer_key`	string	required	Static API key issued to your account after KYC.
`secret-key`	string	required	Dynamic per-request signature: base64(HMAC-SHA256(timestamp, base64(access_key))).
`secret-key-timestamp`	string	required	Current time in milliseconds since UNIX epoch, used to compute secret-key. Must match server time.
`content-type`	string	required	application/jsone.g. application/json

developer_keystringRequired

Static API key issued to your account after KYC.

secret-keystringRequired

Dynamic per-request signature: base64(HMAC-SHA256(timestamp, base64(access_key))).

secret-key-timestampstringRequired

Current time in milliseconds since UNIX epoch, used to compute secret-key. Must match server time.

content-typestringRequired

application/json

example: application/json

Responses

statusnumber
Primary success indicator (0 = success).
messagestring
Human-readable response / error message.
response_status_idnumber
Granular status id; see the shared error-codes table.
response_type_idnumber
A unique id for every possible response shape (success or error) — useful for client logic branching and analytics.
dataobject
API-specific response payload.
- verifiedboolean
  True if Aadhaar OTP validation was successful.
- namestring
  Verified sender name from Aadhaar.
- genderstring
  Gender from Aadhaar record.
- dobstring
  Date of birth from Aadhaar.
- masked_aadhaarstring
  Aadhaar number with first 8 digits masked.