on saturday i was travelled in 12785 to sbc in s1 coach,it was very dirty and bathroom doors have no lock,and in same train(12786) yesterday travelled to kcg in a2 coach and not that much of comfortable than compare to venkatadri 2a coach(iso certified)..
and also reached kcg-sbc and sbc-kcg by 1.30 min delay. and coaches are not good. this is one of the prestigious train between kcg-sbc