I am against to Rajdhani express diversion from main station which is centrally located even if metro connectivity is provided. Don't think traveller will prefer metro get down at some station and again take auto to reach home that too travelling with family. Rajdhani is principally and practically for Nagpur then to Raipur. Nagpur is a circular city and travellers come from different directions. Benguluru and Hyderabad are both circular cities that the peripheral areas travellers prefer bus or personal cab for travel then travel all the way to SC for regional travel while new areas prefer Air which are proximity to airport for long distance travel for more then 24 hours. Only the masses and intermediate traveller uses train.