Visual guide

Train Coach Layout Guide

See exactly how berths and seats are arranged in every Indian Railways class — before you pick one at booking.

Sleeper AC 3-Tier (3A) AC 3-Tier Economy (3E) AC 2-Tier (2A) AC First Class (1A) AC Chair Car (CC) Second Sitting (2S)
SLSleeper Class

The most common long-distance class — non-AC, open bays with curtains between compartments but not around individual berths.

UB MB LB UB MB LB AISLE SU SL One bay (cubicle) — repeats along the coach length
Lower Berth Middle Berth Upper Berth Side Upper Side Lower
3AAC 3-Tier

Same berth arrangement as Sleeper, but air-conditioned with curtains for privacy and free bedding included.

UB MB LB UB MB LB AISLE SU SL One bay (cubicle) — repeats along the coach length
Lower Berth Middle Berth Upper Berth Side Upper Side Lower
3EAC 3-Tier Economy

A denser, budget-friendly version of 3A — an extra middle side berth fits more passengers per coach, at a slightly lower fare.

UB MB LB UB MB LB AISLE SU SM SL One bay (cubicle) — repeats along the coach length
Lower Berth Middle Berth Upper Berth Side Upper Side Lower / Side Middle
2AAC 2-Tier

Only two tiers instead of three — more space per berth, curtains for every bay, and a quieter cabin overall.

UB LB UB LB AISLE SU SL Curtained bay — repeats along the coach length
Lower Berth Upper Berth Side Upper Side Lower
1AAC First Class

The only class with fully enclosed, lockable compartments — a Cabin (4 berths) or Coupe (2 berths), not an open bay at all.

CABIN (4 berths) UB UB LB LB Lockable sliding doorCOUPE (2 berths) UB LB Lockable sliding door
CCAC Chair Car

Airline-style seated class for daytime travel — no berths at all, just reclining seats in a 3+2 row layout.

AC Chair Car (CC) — 3+2 seating
2SSecond Sitting

The most basic reserved seating class — non-AC bench seating, typically 3+3 across, for shorter daytime journeys.

Second Sitting (2S) — 3+3 seating, non-AC