Explanation:

- Option 1: Air Chief Marshal RKS Bhadauria

He served as the Chief of the Air Staff of the Indian Air Force from September 2019 to September 2021. There isn't a record of him receiving the honorary rank of General of the Nepali Army.

- Option 2: General MM Naravane

He was conferred the honorary rank of General of the Nepali Army in November 2020. This honor continues a tradition symbolizing the close relationship between the Nepali and Indian armed forces.

- Option 3: General Bipin Rawat

He was the first Chief of Defense Staff (CDS) of India until his tragic passing in December 2021. Although esteemed, he did not receive this specific honorary title in 2020.

- Option 4: Admiral Karambir Singh

He served as the Chief of Naval Staff of India from May 2019 to November 2021. This particular honorary rank does not pertain to him.

“”