What Is Aadhaar? A Clear Guide to the 12-Digit Identity Number
UIDAI describes Aadhaar as a 12-digit random number issued after its verification process. Enrolment captures demographic and biometric information and is designed so one person receives one Aadhaar after de-duplication.
Independent website: This website explains Aadhaar but does not issue Aadhaar or represent UIDAI.
Use this summary before taking action.
What UIDAI Says Aadhaar Is
12-digit number
UIDAI describes Aadhaar as a 12-digit random number issued after the authority’s verification process.
One enrolment
UIDAI says an individual needs to enrol only once and de-duplication is used before Aadhaar generation.
Demographic + biometric data
Enrolment includes demographic information and biometric information used by UIDAI’s identity system.
What Is UIDAI’s Role?
Independent-site boundary: myadharuidai.com is not UIDAI, cannot access CIDR records and cannot issue, update or authenticate Aadhaar on a user’s behalf.
What Information Is Associated With Aadhaar Enrolment?
Demographic information
UIDAI’s overview lists name, date of birth or age, gender, address and other fields for the applicable enrolment type.
Biometrics
Fingerprint, iris and facial photograph are part of the biometric identity system.
Mobile and email
Mobile and email are optional at enrolment; registered details support services.
Where to Go for Aadhaar Tasks
Download Aadhaar
Use the official UIDAI e-Aadhaar download service for access.
Update Aadhaar
Choose the current UIDAI update route for the detail that changed.
Protect Aadhaar
Use UIDAI privacy and security tools such as VID and biometric locking.
Official sources
Official Sources Used
UIDAI — About Your Aadhaar
UIDAI — My Aadhaar
Use UIDAI for Aadhaar Services
This page explains the system. Actual enrolment, update, download and security actions belong on UIDAI’s official services.