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  • UIDAI is nodal statutory organization behind the Aadhaar, a 12 digit unique number.
  • It was granted statutory status by Aadhaar (Targeted Delivery of Financial and Other Subsidies, Benefits and Services) Act, 2016.
  • It comes under Ministry of Electronics and Information Technology (MeitY)
  • Prior to its establishment as a statutory authority, UIDAI was functioning as an attached office of the then Planning Commission (now NITI Aayog)
  • UIDAI was created with the objective to issue Unique Identification numbers (UID), named as “Aadhaar”, to all residents of India that is
    1. robust enough to eliminate duplicate and fake identities, and
    2. can be verified and authenticated in an easy, cost-effective way. 



  • The first UID number was issued on 29 September 2010 to a resident of Nandurbar, Maharashtra.
  • UIDAI has announced facial recognition for authentication apart from finger prints and eye scans.