With a Tri-Service command in Andaman, and Asia's biggest Naval base coming up in Karwar, india will have the biggest fire-power in terms of Ships and personnel.And when i say dominace its not only fire-power, but also the ability to influence the political climate in a country, which India can in its neighbourhood, better than USA.
Already USN fifth fleet is under severe strain with local Bahrainis asking for removal of the base. USN needs support from the Indian Navy, which is by far the largest naval power in the region. USN has the bigger fire-power in the world, but without political will and strategic partners they are toothless.
That is also the reason why Maldives, maurtius and even Sri lanka turn to IN and not USN even when USN base is near them.