Some of the main airplane manufacturing companies could be the following:
Hindustan Aeronautics Limited (HAL): HAL is a subsidiary of the Government of India and manufactures various types of aircraft, such as light transport aircraft, advanced light helicopters, and other air force aircraft.
Tata Advanced Systems (TASL): A subsidiary of Tata Group, Tata Advanced Systems (TASL) also manufactures avionics along with unique supply systems.
Mahindra Airspace: Mahindra Airspace is also involved in the design, manufacturing, and operation of airplanes.
Speed Aircraft: Speed Aircraft is an Indian private company that manufactures small airplanes.