Explanation:

- Option 1: Mohana Singh

- Mohana Singh is one of the first women fighter pilots in the Indian Air Force, but she is not the first female flight engineer.

- Option 2: Hina Jaiswal

- Hina Jaiswal made history in February 2019 by becoming the first Indian woman flight engineer.

- She successfully completed the Flight Engineer course at the 112 Helicopter Unit in Yelahanka.

- Option 3: Bhawana Seth

- The name Bhawana Seth does not appear prominently in the context of notable firsts in Indian military aviation history.

- Option 4: Anjali Gupta

- Anjali Gupta was India's first female officer to be court-martialed in 2005, and she was not a flight engineer.