POSTValidate Aadhaar & Generate OTP

Validate a sender's Aadhaar number and trigger an OTP to the linked mobile for DMT Levin onboarding.

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

Submits the sender's Aadhaar number via the DMT Levin channel to initiate OTP-based Aadhaar validation. The otp_ref_id from the sender's existing profile plus the Aadhaar number are required. Returns a new otp_ref_id for the validation session. Part of the Levin DMT sender onboarding flow.

Path parameters

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

customer_idintegerRequired

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
`aadhar`	string	required	12-digit Aadhaar number of the sender.e.g. 123456789012
`otp_ref_id`	string	required	Reference ID returned from the Get Sender Info (or Create Sender) API for this customer.e.g. 73849201
`additional_info`	string	required	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

aadharstringRequired

12-digit Aadhaar number of the sender.

example: 123456789012

otp_ref_idstringRequired

Reference ID returned from the Get Sender Info (or Create Sender) API for this customer.

example: 73849201

additional_infostringRequired

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.
- otp_ref_idstring
  New OTP reference ID for the Aadhaar validation session. Pass to Validate Sender Aadhaar OTP.
- mobile_hintstring
  Masked mobile number to which the OTP was dispatched.