If I were a Pak I wouldn’t have worried that much about that island!! As for the IOR, China has a deep interest to keep her SLOCs open!! So, enough pressure will be exponentially increased on India to the point of breaking her will to fight….
India is playing too much with the tail of the dragon! Sending warships to the QUAD patrol at the SCS, putting bottlenecks in the IOR etc. will induce much more powerful reactions toward her…..
As for the deterrent, why do you think Pak has become a part and parcel of the Turkish naval development?!? Long range ship-borne radars/EW, AD systems, HALE UAVs working as SIGINT and quick reaction naval checkpoints, LHDs boarding jet powered unmanned fighters that can carry 4 tons of munitions etc. are being developed for a reason….