UIDAI is mandated to issue an easily verifiable 12 digit random number as Unique Identity - Aadhaar to all Residents of India. Aadhaar (Hindi: आधार, lit. 'base, foundation, root, ground') [7] is a twelve-digit unique identity number that can be obtained voluntarily by all residents of India based on their biometrics and demographic data. [8] 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 ... The UIDAI's new Aadhaar rules from today, November 1, 2025, will help Aadhaar holders update their information with ease by not having to visit the enrolment centres.