Career
He is credited with using a very innovative strategy, while commanding the aircraft carrier INS Vikrant, in the Bay of Bengal. He is believed to have tricked the Pakistani submarine PNS Ghazi, which was on a search and destroy mission, into entering Visakhapatnam. Where it was eliminated.
Krishnan was the youngest son of Rao Bahadur Mahadeva Nilakanta Ayyar (an Executive Engineer ).
Under his leadership, the aircraft carrier"s Sea Hawks struck shipping in the Chittagong and Cox"s Bazar harbors, sinking or incapacitating most ships in harbor. His command during the war, led the crew of Vikrant to earn two Mahavir Chakras and 12 Vir Chakras.
Nilakanta Krishnan was appointed Sub-Lieutenant of the Royal Indian Navy on 1 September 1940. This was a time, when India was still a part of the British Empire.
In 1942 he was awarded the Distinguished Service Cross for "courage, enterprise and devotion to duty in operations in the Persian Gulf".
He had been serving on HMIS Investigator at that time, Admiral Krishnan retired from the Indian Navy in 1976. Krishnan wrote an autobiography, A Sailor" Story, which was edited by Arjun Krishnan. He had also written Number way But Surrender - An Account of the Indo-Pakistani War in the Bay of Bengal.