sirji this becoz the train has only 4sl and 3ac coaches. but if more coaches attach to this train people of lucknow or faizabad will get benefited and also there is no train to Ayodhya from BDTS. like other states Sabarmati Exp runs from Gujrat. Marudhar Exp runs from Rajasthan. these both Trains are used by the people who want to go Pilgrim to Ayodhya