Explanation:

• A Prime Minister to Remember- Memories of a Military Chief book is authored by Sushil Kumar.He is the Former chief of Indian Navy and he wrote a book on Prime Minister Atal Bihari Vajpayee, in which he credited Mr. Vajpayee for turning a “strategic tactical loss into a massive victory”.
• Former Navy Chief Admiral Sushil Kumar passed away at the Army’s Research and Referral Hospital in Delhi. He was 79. Admiral Kumar was the 16th Chief of Naval Staff and oversaw Naval operations during the Kargil conflict of 1999.
• During his tenure as the 16th Chief of Naval Staff from 30 December 1998 until his retirement on 29 December 2001, he was the highest-decorated serving officer in the Indian Navy. He will always be remembered for his strategic leadership and stewardship of Indian naval operations during the 1999 Kargil War.
• Admiral Karambir Singh is the present Chief of the Naval Staff.