#Submarines50 As the arm grew so the different types/classes of Subs as depicted in the graphic - SSK's Kilo's & Foxtrot's @SpokespersonMoD pic.twitter.com/XNSgGWQ9Ku— SpokespersonNavy (@indiannavy) May 1, 2017
Indian Navy SSK's Kilo's, Foxtrot's, Scorpenes (Kalvari) and Akula class (Chakra)