Name a Indian won technical oscar?

Answer 1

To Albert Ridilla, Papken Shahbazian, Ronald Belknap and Jay McGarrigle for the design and development of the Hollywood Film Company Brumagic MPST Densitometer.

The Brumagic MPST was designed specifically to measure density in the motion picture soundtrack and has become the densitometer of choice for reading soundtrack negative and positive densities worldwide.