New Delhi : Mobile- Aadhar can be used as one of the prescribed proofs of Identity for Rail Travel purpose in any reserved class.m- Aadhar is a mobile app launched by UIDAI on which a person can download his,her Aadhar Card. It can be done only on the mobile number to which Aadhar has been linked. For showing Aadhar, the person has to open the app and enter his/ her password to show the Aadhar Card.m- Aadhar when shown by the passenger on his/her mobile after entering the password should be accepted as proof of identity for undertaking journey in any reserved class over Indian Railways. It is effective from 8th September 2017.