Technology Centre
The Technology Centre of the Unique Identification Authority of India (UIDAI) is responsible for managing Aadhaar’s IT infrastructure, data security, and system operations. It ensures reliable authentication services, maintains databases, and supports technological innovation for seamless delivery of Aadhaar services nationwide.

UIDAI Technology Centre
Aadhaar Complex, NTI Layout,Tata Nagar, Kodigehalli,Bengaluru, Karnataka - 560092
Toll Free:
1947
Reception:
080-23099200
Email:
help[at]uidai[dot]gov[dot]in
Content Information
Published on: 11 Apr 2026
Last Updated: 27 Aug 2026
Owner: Tech Center
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: 11 Apr 2026
Last Updated: 27 Aug 2026
Owner: Tech Center