Cmde Arun Kumar is the Author of the book S71 INS Chakra - The Pioneer and her men.
He graduated from the National Defence Academy in Dec 1971 and was joined the Navy in 1973. He joined the submarine arm in 1975. He was part of the commissioning crew of India's first nuclear submarine INS Chakra. He served on Chakra as the operations officer and later the executive officer. He has held many important land and sea-based positions of the Indian Navy. He also graduated from Defence Services Staff College and Naval Higher Command Courses with distinction. His last appointment was Principal Director Submarine Acquisition (PDSMAQ) at the NHQ. He was decorated twice by the President of India with Nausena Medal and Ati Vishisht Seva Medal.