With cameras taking videos of the swimmers, the technical side of their starts and turns under the water can be analysed, which can help improve them as swimmers.
The Swimming Federation of India (SFI) nominated Sajan Prakash for the prestigious Arjuna Award.
The Universality quota allows one male and one female competitor from a country to participate in the Olympics, provided no other swimmer from the same gender qualifies for the Games.
Nataraj's feat came on Sunday was also new national record, which was enough to achieve the 'A' mark for the Tokyo Games set at 53.85 seconds.
Srihari Nataraj and Maana Patel are Swimming Federation of India’s nomination for the Universality places for the Tokyo Olympics.
The general refrain of athletes and coaches had been, “it is understandable if it were shut for only recreational activities”.