<Li> SMB = Side Middle Berth (Found only in 3E class). </Li> <P> In older ICF rakes, 3 - tier AC coaches (AC) would normally have 64 seats / berths while Sleeper coaches (SL) would have 72 seats / berths . Each coach would have four entrances, two on either side of the coach and two at their ends . These coaches had the seat / berth numbers painted above each of the windows, in roman numerals . </P> <P> The Higher classes have reduced seating / berth capacity to create comfort space for passengers . New LHB rakes have 72 seats / berths for 3 - tier AC coaches (3A). Middle berths are found in 3 - tier AC Economy coaches (3E). The "Second seat" coaches have 108 seats and with two additional entrances in the middle of the coaches on either side . These coaches have a total of six entrances . </P> <Ul> <Li> <P> AC First Class (1A) compartment in the Rajdhani Express </P> </Li> <Li> <P> AC Chair Car Coach (CC) in an Jan Shatabdi Express . </P> </Li> <Li> <P> AC Chair Car (CC) coach in a Shatabdi Express . </P> </Li> <Li> <P> AC Three Tier (3A) compartment of the Dakshin Express </P> </Li> <Li> <P> A Sleeper Class (SL) coach . </P> </Li> </Ul>

How many seats in 3 tier ac coach