United Shipbuilding Corporation design bureau Rubin is offering the Amur 1650 submarine with AIP in partnership with Larsen & Toubro for the Indian Navy’s P75(I) program for six submarines.
Naval Materials Research Laboratory (NMRL) is developing an AIP Plug for the fifth and sixth Scorpene submarines, which would be installed on them only if the development is completed within the schedule of the construction of the two submarines.