!!! Overview
[{$pagename}] which means 'foundation' is a 12 digit unique-identity number issued to all Indian residents based on their [biometric] and demographic [data]. 

[{$pagename}] data is collected by the Unique Identification Authority of India (UIDAI), a statutory authority established in January 2009 by the Government of [India], under the Ministry of Electronics and Information Technology, under the provisions of the [{$pagename}] (Targeted Delivery of Financial and other Subsidies, benefits and services) Act, 2016

[{$pagename}] is the world's largest [biometric] ID system, with over 1.19 billion enrolled members as of 30 Nov 2017 in which, over 99% of Indians aged 18 and above had been enrolled.

[{$pagename}] was described by World Bank Chief Economist Paul Romer described as "the most sophisticated ID programme in the world". 

!! [Privacy Considerations]
Aadhaar, owing to increasing concerns around [privacy], the potential for [surveillance], and exclusion of eligible beneficiaries from welfare schemes from the leveraging of [{$pagename}]-based systems, the Aadhaar project's validity is being challenged in the Supreme Court of India (as of November 2017).

!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]
----
* [#1] - [Aadhaar|Wikipedia:Aadhaar|target='_blank'] - based on information obtained 2017-12-19-