It's always tough...isn't it?? Imran....I mean one has to leave out some important cities that are decently populated.Cities like,Kollam(3,49,000+),Alappuzha,Thrissur(3,00,000+),Salem(8,00,000+) definitely deserves a stopover.Nellore(5,00,000+) and Warangal(8,00,000+) and other cities up north which don't get the stops are all worthy candidates.It's such a tricky situation...or one can come with a policy that if two separate pair of Rajdhanis pass through a route in one particular direction then the stop overs can be interchanged.That way....all can avail of the service.