The Surface Fleet of the Navy was called Indian Fleet and was commanded by the Flag Officer Commanding Indian Fleet (FOCIF). Initially, the shore establishments on the eastern coast were headed by a captain in the appointment of Naval Officer-in-Charge, Vishakapatnam (NOIC). This was subsequently upgraded to the appointment of Commodore East (COMEAST), a One Star appointment. The FOCIF and COMEAST reported into the Chief of the Naval Staff. In July 1967, COMEAST was upgraded to the two-star appointment of Flag Officer, East Coast (FOEC). On 1 March 1968, the Eastern Fleet was also created. With this, the appointment of FOEC was re-designated Flag Officer Commanding-in-Chief Eastern Naval Command (FOC-in-C ENC). The Indian Fleet was split between the Western Fleet and the Eastern Fleet with the Fleet Officer Commanding Eastern Fleet (FOCEF) reporting into the FOC-in-C ENC. On 1 March 1971, Vice Admiral Nilakanta Krishnan took over as FOC-in-C, the first three-star officer to lead the command.
The FOC-in-C (East) is the submarine operating authority, under whom COMCOS (E) operates. The 11th (Sindhughosh class submarine) and 8th (Foxtrot class) Submarine Squadrons operate under COMCOS (E). INS Virbahu, a submarine base commissioned on 19 May 1971, is the alma mater of the Indian Navy submariners.
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