Question: what is the difference between 2 tier and 3 tire?
Answer: 3 Tier AC coach Ticket Price is Lower than 2 Tier AC coach. Train berth position of AC 3 Tire has 6 berths facing each other two LB ( Lower Berths) and two UB ( Upper Berths) and two MB ( Middle Berths) . Train berth position of AC 2 Tire has 4 berths facing each other two lower berths LB and two upper berths UB.