INS ''Vela'' (S40) was the

lead ship The lead ship, name ship, or class leader is the first of a series or class of ships all constructed according to the same general design. The term is applicable to naval ships and large civilian vessels. Large ships are very complex and may ...

of four diesel-electric Vela-class submarines of the

Indian Navy The Indian Navy is the maritime branch of the Indian Armed Forces. The President of India is the Supreme Commander of the Indian Navy. The Chief of Naval Staff, a four-star admiral, commands the navy. As a blue-water navy, it operates sig ...

. The submarine was commissioned on 31 August 1973 in

Riga Riga (; lv, Rīga , liv, Rīgõ) is the capital and largest city of Latvia and is home to 605,802 inhabitants which is a third of Latvia's population. The city lies on the Gulf of Riga at the mouth of the Daugava river where it meets the Ba ...

Latvian SSR The Latvian Soviet Socialist Republic (Latvian SSR), also known as Soviet Latvia or simply Latvia, was a federated republic within the Soviet Union, and formally one of its 16 (later 15) constituent republics. The Latvian Soviet Socialist Rep ...

. Along with her sister ship ''Vagli'', she spent almost 10 years undergoing a protracted refit by

Hindustan Shipyard Hindustan Shipyard Limited (HSL) is a shipyard located in Visakhapatnam on the east coast of India. History Founded as the ''Scindia Shipyard'', it was built by industrialist Walchand Hirachand as a part of The Scindia Steam Navigation Company ...

. After 37 years of service, the submarine was decommissioned on 25 June 2010. The submarine was claimed by the

Eastern Naval Command The Eastern Naval Command is one of the three command-level formations of the Indian Navy. It is headquartered in Visakhapatnam, Andhra Pradesh. The command is responsible for the all naval forces in the Bay of Bengal and parts of the Indian Ocea ...

to be the oldest operational submarine in the world at the time of her decommissioning. ''Vela'' is the name of an Indian fish from the

stingray Stingrays are a group of sea rays, which are cartilaginous fish related to sharks. They are classified in the suborder Myliobatoidei of the order Myliobatiformes and consist of eight families: Hexatrygonidae (sixgill stingray), Plesiobatidae ( ...

species known for its aggression and offensive power, and the ability to camouflage itself from predators.

References

Vela-class submarines 1972 ships Foxtrot-class submarines Ships built in the Soviet Union Museums in Chennai {{India-mil-stub