Indian Railway changed the online booking style. Earlier a Id proof details was needed at the time of booking (e ticket). Now it is not needed. You will have to carry any of the following five id cards at the time of travel that's all

1. The input for the proof of identity is not required now at the time of booking.

2. One of the passengers in an e-ticket should carry proof of identification during the train journey.

3. Voter ID card/ Passport/PAN Card/Driving License/Photo Identity Card Issued by Central/State Government are the valid proof of identity cards to be shown in original during train journey.

4. The input for the proof of identity in case of cancellation/partial cancellation is also not required now.

5. The passenger should also carry the Electronic Reservation Slip (ERS) during the train journey failing which a penalty of Rs. 50/- will be charged by the TTE/Conductor Guard.