MB

Definition	:	Middle Berth
Category	:	Transport & Travel » Rail Transport
Country/Region	:	India
Popularity	:
Type	:	Initialism

What does MB mean?

Middle Berth (MB) refers to the sleeping accommodation in a compartment of a train, specifically in sleeper class coaches.
MB is located at the middle level of the compartment, with the Lower Berth (LB) below it and the Upper Berth (UB) above it.
Note:
MB serves a dual purpose. At nighttime, when passengers are ready to sleep, the MB transforms into a sleeping bed for one passenger. During the daytime, when passengers are not sleeping, the MB can be converted into a bench-like seating area where passengers can sit comfortably.