4 sleeper coaches are marked as 2S. .
In this Total 100 seats are there ,
8 passenger will seat in place of 6 , And in side seat 2 Passenger in place of 2 .
If u r booking in advance for 2S , than try to get side seat , bcoz there would be enough space and u...
more... can get entire SUB /SLB berth of Sleeper at 2S rate.