Explanation:

- Option 1: Aditi Ashok: Aditi Ashok is a professional golfer from India. She competed in the women's individual golf event at the Tokyo Olympics 2020 but is not associated with fencing.

- Option 2: PT Usha: PT Usha is a retired Indian track and field athlete. She was known for her sprinting and her performances in the Asian Games and Olympics, not fencing.

- Option 3: Bhavani Devi: Bhavani Devi made history as the first Indian fencer to qualify and represent India in fencing at the Tokyo Olympics 2020. She competed in the women's individual sabre event.

- Option 4: PV Sindhu: PV Sindhu is an acclaimed badminton player from India. She participated in the Tokyo Olympics 2020 in badminton and won a bronze medal, not fencing.