Aadhaar is a 12-digit unique identity number issued by UIDAI to residents of India. It is used as proof of identity and address for a wide range of services. New enrolment is done at an Aadhaar centre; most updates (address, mobile, email, name, etc.) can be started online on the official UIDAI portal.
Official website
UIDAI (Unique Identification Authority of India)
https://uidai.gov.in
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Visit the official UIDAI portal (uidai.gov.in).
For new enrolment, locate the nearest Aadhaar Seva Kendra and book an appointment.
For updates, sign in with your Aadhaar number and OTP.
Choose what to update (address, mobile, name, etc.) and upload supporting documents.
Submit and note your Update Request Number (URN) to track status.
Official fees
Document update: ₹50 (online/at centre); biometric update: ₹100 (as published by UIDAI). New enrolment is free.
Processing time
Updates are typically processed within about 30 days (per UIDAI).
Sponsored
Sign in on uidai.gov.in with your Aadhaar and OTP, choose 'Update Address', upload a valid address proof, and submit. You'll get a URN to track it.