Updated: May 25, 2026
Berth details in train usually means coach number, berth number, berth type, and the station segment where the berth is occupied. For vacant seat searches, the most useful detail is whether the berth is empty between your chosen stations after chart preparation.
| Berth | Meaning | Useful For |
|---|---|---|
| LB | Lower berth | Senior citizens, short stops, easy access |
| MB | Middle berth | When options are limited in sleeper/3AC |
| UB | Upper berth | Longer journeys and privacy |
| SL/SU | Side lower / side upper | Solo travelers and aisle-side access |