LSP-1 is the first aircraft to roll out of HAL production hangar, marking the beginning of series production of Tejas for induction into the Air Force.
The flight in Bangalore on Thursday lasted 47 minutes, during which all the systems of the aircraft functioned "perfectly well", Defence Research and Development Organisation said.
Flown by Group Captain A P Singh, the aircraft covered an altitude upto 11 km and supersonic speed of Mach 1.1, DRDO said in its release.
This is the first time in the country that any aircraft has gone supersonic in the very first flight, it said. As is customary for the first flight of a prototype, the flight was chased by another Tejas (TD-2).