Reached delhi today (27-02-2012) via this train and it was hauled by WAP-4 from end to end and arrived 1 hr late at the ndls stn. i believe if it had been hauled by WAP-5/7 the loco would have tried covering the time since wap-5/7 are more powerful than the WAP-4's. Does it make sense?
And also the train reached MGS late by good 35-40 mins thus it had all the time in the world to cover that lost time.