This train ve started for a purpose that includes connectivity of asansol-durgapur with South snd north east too. Any one can argue such type of train should run through shortest route. If such rational prevails then tulsi exp must run via sta-jbp instead of via banda-mahoba.
The train still can serve the purpose if it diverts via dgr-udl after dkae. Both connectivity and avoidance of loco reversal will be addressed.