UIDAI — Unique Identification Authority of India logo
UIDAI — Unique Identification Authority of India logo

Authentication Documents

Access Aadhaar authentication circulars, regulations, guidelines, onboarding checklists and technical documents for AUAs, KUAs and ASAs.
Appointment of Sub-AUA –Application & Undertaking

Authentication Documents

Doc Type:PDFSize:379.62 KBUploaded On:12-07-2017

Delta Certification process for Registered Devices

Authentication Documents

Doc Type:PDFSize:880.84 KBUploaded On:13-06-2017

Circular for AUA/KUA and ASA Agreements v.4.0

Authentication Documents

Doc Type:PDFSize:359.41 KBUploaded On:31-05-2017

ASA Agreement V 4.0

Authentication Documents

Doc Type:PDFSize:936.56 KBUploaded On:28-05-2017

ASA Application Form

Authentication Documents

Doc Type:PDFSize:764.71 KBUploaded On:27-05-2017

ASA Appointment Letter and Bank Guarantee

Authentication Documents

Doc Type:PDFSize:697.56 KBUploaded On:26-05-2017

AUA KUA Agreement V 4.0

Authentication Documents

Doc Type:PDFSize:1019.47 KBUploaded On:22-05-2017

Disincentives to be imposed on Authentication Service Agencies (ASA)

Authentication Documents

Doc Type:PDFSize:213.86 KBUploaded On:22-05-2017

AUA KUA Appointment Letter and Bank Guarantee

Authentication Documents

Doc Type:PDFSize:707.92 KBUploaded On:19-05-2017

Disincentives to be imposed on Authentication eKYC User Agencies (AUA/KUA)

Authentication Documents

Doc Type:PDFSize:215.85 KBUploaded On:16-05-2017

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Content Information

Published on:21 May 2026

Last Updated:20 Jun 2026

Owner:A & V

Frequently Asked Questions

You can download the Aadhaar app on your Android/iOS device from the Play Store/App Store. For Android: https://play.google.com/store/apps/details?id=in.gov.uidai.pehchaan  For iOS: https://apps.apple.com/in/app/aadhaar/id6744029871

After downloading the app, the Aadhaar Number Holder (ANH): →Select Language→ Enters their Aadhaar number → Agrees to the Terms and Conditions and Privacy Policy → Chooses the SIM card → Performs Face Authentication → Gets registered on the app → Sets a 6-digit PIN to secure access to the app.

Presently, the Aadhaar app offers various services like - Mobile Number Update, Address Update, Biometric lock/unlock, Selective Sharing of Aadhaar Verifiable Credential, check Authentication History, download e-Aadhaar, share Contact Card, Track my request, etc.

View more F.A.Qs

Content Information

Published on:21 May 2026

Last Updated:20 Jun 2026

Owner:A & V