Samantha exp stops at 20 stations between vskp and Raipur in a distance of 528 km on day time on both sides. Increase in train to 24 coaches Requires increase in platform length in at least 15 stations which should have been completed otherwise it I'll be difficult for general passengers to board the train at the tag end. Given the topography and importance of railway line I doubt the extension of platforms in many stations enroute. If they are done IR can increase 1GS and a sleeper.