3 reasons -
1. Agar BPL shatabdi ko band karke Gatiman ko BPL tak chate aur AGC tak 160kmph fir normal shatabdi ki speed par. To gatiman ko pasanger mil pate.
2. This train only divide the passangers of BPL shatabdi. Jo jaldi nhi uth sakte wo gatiman se jayenge. Bpl shatabdi ke pax kam ho jayenge.
3 . 7 min ke liye fare...
more... difference bahut jyada h.