current reservation is of two types.
1.issued from special reservation counters. Just like prs tickets. You fill in resvn form and present it across the counter. Clerk feeds in name,age,sex. Copy to tte. Tte verifies it onboard with your id card. Applicable for all trains except those mentioned below. No id cards for sleepers. Id card reqd for ac class
2.issued from all unreserved counters. Just like normal unreserved ticket but fare is that of reserved. Issued for trains like jan shatabdi, double decker(hwh dhn dd). You pay the money,get the ticket. No...
more... resvn form is to be filled. No id card required.