Indian Railways Berth Codes Explained
| Code | Full Form | Description | Best For |
|---|---|---|---|
| LB | Lower Berth | Bottom-most sleeping berth on the main 6-berth compartment side. | Senior citizens, patients, families with kids |
| MB | Middle Berth | Foldable middle berth between Lower and Upper (in SL & 3A). | Budget solo travelers |
| UB | Upper Berth | Highest berth, undisturbed day and night. | Youth, passengers seeking privacy |
| SL | Side Lower | Berth positioned along the corridor window aisle. | Daytime scenic views, solo travelers |
| SU | Side Upper | Top berth along the corridor aisle above Side Lower. | Uninterrupted sleep |
| CP / CB | Coupe / Cabin | Private 2-berth (Coupe) or 4-berth (Cabin) locked room in 1st AC. | VIPs, couples, luxury travelers |
Coach Class Breakdown & Capacities
- SL (Sleeper Class): Non-air conditioned, 72 to 80 berths per coach (8 berths per bay).
- 3A (Third AC): 3-tier air-conditioned sleeper, 64 to 72 berths per coach.
- 3E (AC 3 Economy): High-density 3-tier AC coach with 83 berths and dedicated AC vents.
- 2A (Second AC): 2-tier spacious AC coach (no middle berths), 46 to 54 berths per coach with privacy curtains.
- 1A (First AC): Private lockable cabins (4 berths) and coupes (2 berths), 18 to 24 berths per coach.
- CC (AC Chair Car): 3x2 seating with 73 to 78 push-back chairs, featured on Shatabdi and Vande Bharat.