1. What is Aadhaar Bridge?

    Aadhaar Bridge is a product of Khosla Labs Private Limited.Khosla Labs a registered AUA and KUA with the Unique Identification Authority of India. (“UIDAI”)

    Aadhaar Bridge offers services by which you can access APIs for conducting Auth, eKYC and eSign transactions.

  2. What is the Authentication transaction?

    The Authentication or Auth transaction can either:
    confirm the presence of the Aadhaar holder :by way of biometric or OTP auth; or;
    verify different fields by way of demographic auth.

    The auth transaction only returns either Yes or No responses: i.e: confirming a match or not.

  3. What are the different forms of biometric Auth supported?

    The UIDAI provides for both fingerprint and iris biometric authenticaton. The sensors need to be STQC certified. Here is a list of the devices we currently support.

  4. What is the eKYC transaction?

    The eKYC transaction retrieves the eKYC data of the Aadhaar holder. The eKYC call will return the photo, name, address, gender and date of birth of the Aadhaar holder.

    It does NOT return the mobile number or email id of the Aadhaar holder.

    With the eKYC services, the following should be remembered:

    • Consent of the Aadhaar holder should be procured for retrieving his eKYC details.
    • The Aadhaar holder needs to be adequately notified of the purpose for which his eKYC data is being retrieved and the company/entity that will have access to it
    • You CANNOT share the eKYC data with a third party. Every party who has access to the eKYC data needs to be sublicensed individually.

  5. I am ready to sign up! But can I take it out for a spin first?
    Sure. We offer you the developer edition. We provide you a fingerprint sensor and two months of unlimited service in the pre-production environment.
  6. What are the different environments made available?

    There are the following:

    1. Staging environment
    2. Pre-production
    3. Production environment

    Staging environment is simulated by the UIDAI for which the UIDAI provides a dummy Aadhaar id to test the system against.

    Pre-production environment returns true values against true Aadhaar ids. It is to be used only for non-commercial testing/demo. It is less stable than the production environment.

    Production environment is the live environment which supports commercial transactions

  7. My product is live. How can I access the Production environment?
    You can access the production environment by signing up for our Enterprise edition package. Click here for further details.
  8. Great! I want to register as a Sub-AUA for the Aadhaar services. Now what?
    Sign up

    Please complete the sign up form with the corrrect details of your Organisation. The email id signed up with, can't be changed later.
    Once you have signed up with us, we will e-mail you instructions and list of requisite documents for UIDAI approval.

    Please note: Incomplete or inadequate sign up forms will be rejected.

    Approval from UIDAI

    After you courier us the Sub-AUA Application with complete documents, Aadhaar Bridge will conduct due diligence on your application. On clearing the due diligence, we will forward your applciation to UIDAI, New Delhi for Sub-AUA approval.

    Subject to UIDAI approval, you will have to Submit us Sub-AUA Agreement and make payment to start using our services.


    You can sign the agreement either:
    online with a Digital Signature. Or;
    offline by taking a print out of the document.

    Where the agreement is signed offline with a wet signature, scan and send a copy of the agreement to


    Mail us the hard copy to :

    Attn: Aadhaar Bridge
    Khosla Labs Private Limited
    #18/2A, GRS Towers,
    2nd floor, Opp SpringFields Apartments,
    Sarjapur Road, Bangalore – 560102
    Karnataka, India

    After your agreement has been successfully uploaded, you will receive a link to the payment step.


    You will now be redirected to the payment gateway to make your payment online.

    Your onboarding process is now complete!

  9. What are Khosla Labs Bank account details for NEFT/RTGS?

    Beneficiary Name : Khosla Labs Pvt Ltd
    Bank Name, Branch : Kotak Mahindra Bank, Koramangala
    Location : Bangalore
    Current Account No : 1411539585
    IFSC Code : KKBK0000424

250+ Clients