There should be some arrangements like demand basis. Routes which are having more passengers should get a experimental train for 3 or 6 months, based on percentage occupancy either it should be made permanent or stopped.
Just like markets work, supply upto demand.
GAYA-LTT a humsafar maybe started for 6 months, route maybe via DDU-BSB-PRYJ-JBP or CNB as per slot availability.