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.
Aadhaar (Sharing of Information) First Amendment Regulations, 2025.

Authentication Documents

Doc Type:PDFSize:633.94 KBUploaded On:29-10-2025

Introduction of L1 Compliant Iris Authentication Registered Devices in Aadhaar Authentication Ecosystem.

Authentication Documents

Doc Type:PDFSize:1 MBUploaded On:22-09-2025

Circular 12 Of 2025

Authentication Documents

Doc Type:PDFSize:8.36 MBUploaded On:29-08-2025

Circular 11 of 2025 dated 14.10.2025 regarding Extension of Authentication Service Agency facilities to other requesting entities.

Authentication Documents

Doc Type:PDFSize:994.28 KBUploaded On:29-08-2025

Circular 10 of 2025 dated 1.8.2025 regarding Framework for onboarding of State Co-operative (StCBs) and district Co-operative Banks(DCCBs) in Aadhaar authentication ecosystem.

Authentication Documents

Doc Type:PDFSize:2.76 MBUploaded On:11-08-2025

Circular 9 of 2025 dated 31.7.2025 API document for Aadhaar status notification framework Documentation.

Authentication Documents

Doc Type:PDFSize:1.64 MBUploaded On:11-08-2025

Circular 8 of 2025 dated 18.7.2025 regarding revised guidelines on ADV & HSM.

Authentication Documents

Doc Type:PDFSize:874.52 KBUploaded On:18-07-2025

Circular No.2 of 2018, partial modifications on Face Authentication Implementation.

Authentication Documents

Doc Type:PDFSize:794.94 KBUploaded On:18-07-2025

Compliance checklist for certifying compliance with controls that the AUA/KUA is required to have in place.

Authentication Documents

Doc Type:PDFSize:870.04 KBUploaded On:13-06-2025

UIDAI letter to Registered device vendors regarding necessary implementation for Sandbox environment.

Authentication Documents

Doc Type:PDFSize:664.84 KBUploaded On:11-06-2025

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