Aadhaar

Indian national identification number

Aadhaar is a twelve-digit unique identity number that can be obtained voluntarily by all residents of India, based on their biometrics and demographic data. The data is collected by the Unique Identification Authority of India (UIDAI), a statutory authority established in January 2016 by the Government of India, under the jurisdiction of the Ministry of Electronics and Information Technology, following the provisions of the Aadhaar Act, 2016.

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