yeah.. raat wali RT trains like Prayagraj n all ka OT hua hoga fir chali hogi.. I've faced the same situation in 12368 on 28th jan 2013..
21:30pm pe departure mila n SBB n GZB se finally 00:10 pe nikal paye.. next day 2am pe BGP utari train n wahan se 4am pe MDLE passenger leke ghar.. that was my last journey in Vikramshila.. ab himmat nahi hoti hai waise hi kam time ke liye ghar jaa pate hain.. 2 din kaun kharab kare :(