Aadhaar number

This battle came to its destined end on Tuesday, 11 days after the family knocked the doors of the Calcutta High Court.

To render the m-Aadhaar as identity proof, the passenger has to open the app and enter his/her password.

This app lets you carry all your Aadhaar card information on your smartphone, which will have all the demographic details available for you.

With over 1.123 billion members enrolled, Aadhaar is the world's largest biometric ID system.