Vice Admiral Arun Kumar Singh retired as Commander-in-Chief of the Navy's Eastern Naval Command in 2007. A nuclear and missile specialist trained in the former Soviet Union, he was also DG Indian Coast Guard.
The writer, an author, former diplomat and is in politics.
Manish Tewari is a lawyer and a former Union minister. The views expressed are personal. Twitter handle @manishtewari
C Raj Kumar is the founding Vice-Chancellor of O P Jindal Global University and Dean of Jindal Global Law School.
The writer is a member of Compost Heap, a group of academics and activists working on alternative imaginations.