As far air strikes against Pakistan are concerned carriers offer immense advantage to India.
Fore-mostly a carrier a mobile airbase which can position itself anywhere in the world, where there is water.
While land based airbases are fixed and their position, know to the enemy can be targeted in air raids and missile attack , on the other hand carrier is always on the move, almost always hidden from the enemy.
Back when OBL was killed, there was a hilarious explanation from PAF, on why Americans were able to surprise Pakistani air defense network and come, kill and go undetected.
PAF claimed all their early warning networks are configured to detect intruders from the East and that is why, they were unable to detect American choppers. Though it was clearly an attempt to hide their incompetence. PAF's explanation did have some merit. American did manage to surprise Pakistan by approaching them from an unexpected direction, they were able accomplish their mission and get back home, before PAF even found what had happened.
Hence with a an aircraft carrier ...India can not only attack Pakistani targets from East but also South and South west and West, can approach Pakistan from direction, where its radar network is the weakest, and spring a surprise.