Indian Railways Seat Availability and Reservation
These are the classes of seats that can be reserved on Indian Railways trains.
2S - Second Sitting
Non-AC seats, usually found on day trains.
SL - Sleeper Class
The most popular class in Indian Railways and available on most express trains. Non-AC. From 9pm to 6am you can sleep on the berth; during the day the lower berths are used for sitting.
CC - Chair Car
AC coach with 3+2 seating.
EC - Executive Chair Car
First AC chair car with 2+2 seating; more spacious and designed for business travellers.
EA - Anubhuti Chair Car
Anubhuti coaches are attached to Shatabdi trains as an additional executive class and have ergonomically designed seats.
3E - AC Three Tier Economy
AC three-tier coach with slightly narrower berths and a lower fare than 3A.
3A - AC Three Tier
Three berths (upper, middle and lower) per side. AC coach.
2A - AC Two Tier
Two berths (upper and lower) per side. AC coach with more headroom than 3A.
1A - AC First Class
The most expensive class: lockable cabins of 2 or 4 berths. Berth numbers are allotted only after charting.
UR - Unreserved / General
No reservation is needed; tickets are bought at the station or on the UTS app and seats are first come, first served.