Explanation:

- Bajrang Punia: He is an Indian wrestler who is recognized for his achievements in the freestyle wrestling category. Bajrang has a history of strong performances in international competitions.

- Yogeshwar Dutt: Another well-known Indian wrestler, Dutt has won medals in various international events, including the Olympics. However, he primarily competed in earlier years and is not associated with the Dan Kolov 2019 event.

- Sandeep Tomar: An accomplished Indian wrestler, Tomar has competed in events internationally, but he did not win the gold in the 65 kg category at the Dan Kolov 2019 wrestling event.

- Sushil Kumar: A legendary Indian wrestler with multiple Olympic medals, Sushil generally competed in different weight categories and was not affiliated with the 65 kg category at the Dan Kolov 2019 event.

- Correct Answer: Bajrang Punia: He won the gold medal in the Men’s freestyle wrestling 65 kg category at the Dan Kolov 2019 wrestling event.