Explanation:

- Fouaad Mirza (Option 1):

- He became the first Indian equestrian to qualify for the Tokyo Olympics 2020.

- Mirza is known for his achievements in eventing, a competition involving dressage, cross-country, and show jumping.

- He earned international recognition with his performance during the Asian Games 2018, winning silver medals.

- Amit Sinsinwar (Option 2):

- Sinsinwar is a less-known name in the international equestrian circuit and has not qualified for the Olympics.

- Sehej Singh Virk (Option 3):

- Virk is not associated with qualifying for the Tokyo Olympics.

- Amar Sarin (Option 4):

- Sarin is not known for qualifying for the Tokyo Olympics in equestrian sports.