That would break of 253 mph set by three-time Olympic silver medalist Lee Chong Wei of Malaysia in 2015.
His power lies in his hard hitting smashes which he uses in order to end rallies and one such smash was seen in the Japan Open Superseries in 2015 where he hit the fourth fastest smash in Badminton history.
In the second video, his brother decided to play his target.
Kashyap even has a world record of hitting cracker of a smash clocking 401 kmph in the Japan Open Superseries, 2015.
However, the fastest smash outside of competition is reportedly 306 mph,.
His fans still consider his Malaysian legacy to be unmatched.