Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 19:00 and arrives at Mumbai Chhatrapati Shivaji International Airport at 21:25.
The flighttime is about 2h 25m. The distance travelled ("as the bird flies"): 544 Km. So the average speed is roughly 225 Km.
The best day to arrive at Delhi is Monday and it would be best to avoid Tuesday, as prices are on average 129.63% higher than on Monday. (Average prices, based on 6607473 datapoints.)
We have a lot more statistics for flights 6E 354 and between Delhi and Mumbai.