India can't make it's own subs?
India has built the German Type-209 under license,so has South Korea,Greece & Brazil,while Australia has built Swedish subs & Pakistan French ones.The point to be noted is that these countries only BUILT the ships,not designed them.A lot of nations build D/E subs,only a handful design them & that won't change unless South Korea & India decide to rework their arms export policies.India's last homebuilt sub hit the water in 1993,since then the yard has been lying idle,though it is in the process of being upgraded to build new French subs & possibly Russian D/Es as well.India's N-subs are being fabricated at another yard on the Eastern Seaboard.