There is a huge difference to work in a state and in a Counrtry set up. In state you don't have State set ups which is to some extent independent of Central government. Secondly, it might sound simple to get rid of all Minorities, but practically that is impossible. Even to change simplest of the things as you may say article 370 or uniform civil code, that a fundamental constitution change which means 2/3rd mejority in the parliament plus more than half of states approval again with 2/3rd majority. So nothing in that front is going to change. If you talk about terrorism, they can bring in POTA or any other thougher laws but remember it already backfired once for them it can bite back even harder this time, with the world watching, India can not become China or N. Korea overnight. It has to depend on a lot of countries specially islamic countries for Oil. Have you ever thought if a whole India episode of Gujrat happens then what sort of international repurcutions it might have?