Mumbai Central-Deradun SF express
Currently , there is no SF trains having sleeper and genral coaches which leaves mumbai at 17:50 pm(After all rajdhani and garib rath have left ) and travel SF till hazrat nizzamudin and reach around 1pm there and reach final destination of dehradun at around 6pm.
Returning, it should start from dehradun at 7am and depart from nizamdun at 12:15pm and reach mumbai BCT at 8am (before the rajdhani and garib raht). i would be a great train.