I have 6 CNF tickets for 15018 from nk to ltt for 23/12/2014. My problem is that I have to board another train from ltt at 08.40 pm. Actual departure time of 15018 at nk is 02.00 pm. Maximum delay of 2 hrs is ok but beyond that this train is of no use. I will cancel this ticket if delayed by more than 2 hrs. In this situation, what to do ? Either cancel ticket or go for tdr bcoz train already started its journey from gkp before 28 hrs. How much refund possible ? LIVE STATUS shown on indian rail app is AUTHENTIC or not. Should I depend on that app for train live status or that all is fake. Please anybody suggest.