Explanation:

- Option 1: Deepender Singh

- Deepender Singh is an accomplished Indian para shooter.

- However, he did not win the P4 gold at the Al Ain 2021 Para Shooting World Cup.

- Option 2: Manish Narwal

- Manish Narwal is a prominent Indian para shooter known for his exceptional skills.

- Manish Narwal won the P4 mixed 50m pistol SH1 gold at the Al Ain 2021 Para Shooting World Cup.

- Option 3: Singhraj Adhana

- Singhraj Adhana is another skilled Indian para shooter.

- Participated in various shooting events but did not win P4 gold at this event.

- Option 4: Rahul Jakhar

- Rahul Jakhar is also part of the Indian para shooting team.

- Did not secure the P4 gold in the said event.