During the
British Raj, Visakhapatnam was identified as an important convoy assembly point for military operations. Shortly after the outbreak of the
Second World War, a small naval base was commissioned on 12 December 1939 as the seat of the Senior Naval Officer, Visakhapatnam. Lieutenant Commander H. E. Passmore, RN was the first SNO. On 12 April 1942, the base was converted into a refitting and operational establishment and christened
HMIS Circars. Later that year, the establishment and the Visakhapatnam harbour were bombed by the Japanese. During the war, the base was used as an advance base and developed to meet the needs of the
Fourteenth Army, and later for the Coastal Forces. After the
Partition of India, the Indian Navy was left without a sailors training establishment. A temporary training establishment was set up at HMIS Akbar in Mumbai before moving to
Circars in December 1947. The base continued to be the primary sailor training establishment until 1980 when it moved to
INS Chilka.
Circars then became the base depot ship of the
Eastern Naval Command. ==Today==