Flight Chhatrapati Shivaji International Airport departs from Mumbai Chhatrapati Shivaji International Airport at 19:40 and arrives at Tokyo Narita International Airport at 07:35.
The flighttime is about 8h 25m. The distance travelled ("as the bird flies"): 7441 Km. So the average speed is roughly 884 Km.
There is an 3.5 hour time difference between Mumbai and Tokyo