INS Khanderi (S22) was a Kalvari-class submarine diesel-electric submarine of the Indian Navy. Khanderi was built at Sudomekh, Admiralty Shipyard and commissioned in the navy in December 1968 and decommissioned from service in 1989. The hull was scrapped, but her fin was preserved at Virbahu parade grounds. The submarine was named after Maratha emperor Shivaji's island fort of Khanderi. On 22 April 1969, INS Khanderi became the first submarine in the world to reach the highest port, Matadi, Democratic Republic of the Congo after successfully navigated 80 nm up the Congo River. This was a part of the first voyage. Previous attempts to reach the port by the US Navy and the Royal Navy had reportedly failed.