Flight Rajiv Gandhi International Airport departs from Hyderabad Rajiv Gandhi International Airport at 00:45 and arrives at Bangkok Don Mueang International Airport at 06:05.
The flighttime is about 3h 50m. The distance travelled ("as the bird flies"): 2465 Km. So the average speed is roughly 643 Km.
There is an 1.5 hour time difference between Hyderabad and Bangkok