Flight Indira Gandhi International Airport departs from Delhi Indira Gandhi International Airport at 20:00 and arrives at Mumbai Chhatrapati Shivaji International Airport at 22:30.
The flighttime is about 2h 30m. The distance travelled ("as the bird flies"): 544 Km. So the average speed is roughly 218 Km.
The best day to arrive at Delhi is Monday and it would be best to avoid Wednesday, as prices are on average 124.22% higher than on Monday. (Average prices, based on 6009506 datapoints.)
We have a lot more statistics for flights 6E 2303 and between Delhi and Mumbai.
