UIDAI – Aadhar

Government of India has constituted Unique Identification Authority of India (UIDAI) on 28-01-2009 under the Planning Commission with the objective of issuing a Unique Identification Number called A A D H A A R to all the Indian residents.


Aadhaar is a 12-digit unique number which the Unique Identification Authority of India (UIDAI) will issue for all residents. The number will be stored in a centralised database and linked to the basic demographics and biometric information


Residents who intend to get the AADHAAR need to go to the nearest enrolment camp/ station to enroll themselves. The resident needs to carry certain documents relating to proof of identity {POI} and proof of address {POA}

Upon successful completion of enrolment, UIDAI will issue Aadhaar Number to the resident after de-duplication of data (i.e. after ensuring that no duplication of the enrolled data exists)


  • UID-Aadhaar Number identifies individuals uniquely on the basis of their demographic and biometric information and can help residents easily establish their identity to Banks and other Agencies.
  • The Enrolment data sent by various Registrars and received by UIDAI can be used by banks for opening Bank accounts in bulk.
  • Aadhaar Enabled Bank Accounts (AEBA) will be used for Direct Transfer of subsidies by Central and state Governments
  • The centralised technology infrastructure of the UIDAI will enable 'anytime, anywhere, anyhow' authentication i.e. Agencies and service providers can contact the Central Identities Data Repository [CIDR] of UIDAI from anywhere in the country to confirm a resident’s/beneficiary’s identity