I already proposed a P15C Class ship. (Cruiser Ship)we should have missile bay ships (both for nirbhay and K15 ship launch version). Plus wont be bad idea to have PDV and AAD on these missile bay ships.
K15 in Cruise Missile Role to attack Strategic Targets like Hongkong and Guanghzou.
Nirbhay (should be exported to Vietnam in lots) to take out coastal and near coast
Hypersonic Brahmos with 500 Km Range. (All Supported by IRNSS+GAGAN)
Klub-S (Range 50 Km) to take care of underwater threats.
AAD can be navalised with LRTE.
Or 2 Capital ships can share the above capabilities between them.