In 2010, India began a 10-year lease of the nuclear-powered attack Akula-class submarine Nerpa. After joining India's Navy, the submarine was renamed to INS Chakra.
"India agreed to lease a project 971 submarine which will be withdrawn from the Russian Navy," the source told Kommersant newspaper.
Akula-class submarines feature very low acoustic signatures and can carry up to 12 submarine-launched cruise missiles with nuclear warheads and a range of 3,000 kilometers (1,860 miles) in addition to anti-ship missiles and torpedoes.
First published by Sputnik.