india supreme court rule thursday right privacy fundamental right protect indian constitution potential setback government push mandate use aadhaar unique id number variety routine task billion indians already register aadhaar card ascribe unique id number record fingerprint iris scan person database originally set-up streamline welfare benefit payments reduce wastage current government however keen mandate use aadhaar everything file income tax operate one bank account timeline various aadhaar developments march 2006 india ministry communications information technology approve unique id uid scheme poor families december 2006 empower group minister egom constitute collate two scheme -the national population register citizenship act 1955 uid scheme 2007 first meet egom recognize need create residents database lead creation aadhaar 2009 unique identification authority india uidai create issue unique identification number nandan nilekani appoint first chairman december 2010 national identification authority india bill 2010 niai bill introduce parliament september 2011 number aadhaar holders cross 100 million december 2011 stand committee finance reject niai bill initial form recommend requirement privacy legislation data protection law continuance scheme 2012 former high court judge file petition contend aadhaar violate fundamental right equality privacy september 2013 supreme court pass interim order state person suffer aadhaar card december 2013 number aadhaar holders cross 510 million march 2014 supreme court revoke order make agencies demand aadhaar welfare scheme court also forbid uidai share information aadhaar database agency without individual consent december 2014 number aadhaar holders cross 720 million august 2015 three-judge bench supreme court limit use aadhaar certain welfare scheme order one deny benefit lack aadhaar card refer question right privacy fundamental right constitution bench february 2016 number aadhaar holders cross 980 million march 2016 aadhaar target delivery financial subsidies benefit service bill introduce money bill low house parliament bill pass parliament receive presidential assent january-march 2017 various ministries make aadhaar mandatory welfare pension employment scheme aadhaar make mandatory file income tax return aadhaar holders cross 1.14 billion data compile software freedom law centre state aadhaar report 2016-17 india 's push broaden use biometric database