During its service with India, it was partially manned by a Soviet crew,[2] who reportedly did not allow Indians into the missile room and into the reactor compartment and this is believed to be a reason for the termination of the contract after 3 years.

[5] In October 1986, the Soviet Politburo declared that they intend to transfer a Charlie-class submarine to India for training purposes.

It passed through the South China Sea and Malacca Strait where it was escorted by an Indian frigate, INS Dunagiri.

[9] The submarine was welcomed by the Indian Prime Minister, Rajiv Gandhi, the Defence Minister, K. C. Pant, the Chief of Naval Staff, G. J. Nadkami, and the commander of Eastern Naval Command, Vice Admiral S. C. Chopra, who sailed in the submarine into the sea.

[9][10] Chakra took part in the Presidential Fleet Review of 15 February 1989 at Mumbai when it was watched by millions of Indians on television.

[9] Contrary to popular perception, the Chakra was partially manned and control by the Soviet crew,[2] who reportedly did not allow Indians into the missile room and into the reactor compartment despite repeated Indian requests and efforts, and this is believed to be a reason for the termination of the contract after 3 years by India.

[10] As the lease agreement ended, Chakra departed to the Soviet Union from Visakhapatnam on 16 December 1990 and was escorted by INS Savitri throughout its journey.