It's not all 200 million, and you don't need to vaporize them. All you have to do is assert yourselves a little. And now that there is finally a Central Government, as well as Governments in most states, which won't appease radical Islamic elements in the garb of secularism, at the cost of Hindus; I think the country will receive a much needed course correction.
Because it's a non-negotiable fact that Muslim dadagiri, and exercising of influence highly disproportionate to their numbers (which are growing at alarming rates) has to come to an end. Otherwise they will anyhow turn India into Syria (as they always do to their own countries and neighborhoods/ghettos).
And frankly, Muslims are experts at that "I'm crazy and ready to die, are you?" Blackmail Routine (Pakistan has been doing it on a nuclear level) - but for that Hindus cannot continue living in fear and back down. So as I said, increased Hindu assertiveness with the help of non-Islamist appeasing Governments will be adequate to handle that.