Because of the past tsunami, much of the Indian Ocean is being hydrographically surveyed again. Many depths have changed by hundreds of meters. Perhaps these surveys will reveal even more encouraging news.
Correct me if I'm wrong, but isn't India part of a gigantic north bound land mass that is still crashing into Southern Asia? If that's the case, then I wonder about the possibilities of fossil fuels/oil and gas reserves just South of India (or where India was given the theoretical shift of plate techtonics).
I'm not a geophysist, so I could be way off.
That's where Reliance & staterun gas companies have mad their finds,mainly off River deltas.