While departing from Chennai Cerntral, Rajdhani and Duronto Express cannot be boarded by the passengers arriving from Rameshwaram or Madurai as it mainntains hardly a gap of 1 hour which is natural late time of arriving trains at Egmore. Both Rajdhani and Duronto desparture time need to be revised to 0800AM or afterwards from its current timing 0610 and 0640 respectively.