Secunderbad nizamudin duronto express
ye train secunderabad delhi route ki sabse fastest train hai ye train ko full ac duronto hona chahiyeaur iski speed ko badhaya jaye jisse ye train rajdhani se jyada chale
secunderabad se 2 jaati hai jo fast sevice deti hai isse duronto ko kam progress milta hai is wajah se isme thode changes diye jaye