Which is the India's first indigenously built submarine ?

Question

Where was India's first submarine base 'Virbahu' commissioned in 1971 ?
(A) Mumbai (Maharashtra)
(B) Kochi (Kerala)
(C) Visakhapatnam (A.P.)
(D) Port Blair (A.& N.Islands)

Answer 1

INS Shalki

INS Shalki is a Shishumar-class diesel-electric submarine of the Indian Navy. The submarine was the first ever submarine to be built in India and launched in 1987 by the late PM Rajiv Gandhi.