observing your experience it seems that u travel least in this route. that's why you are stating this. The route is scheduled with too many trains from Kumedpur junction and also due to the route's geographical condition its very difficult to maintain the schedule. and there some times for the maintenance, trains of this route r rescheduled specially during winter and rains. And If you say Saraighat express is a bogus train then u better go for flights.