1. Still a minority. Lower castes of Hindus make up more than them.
2. What does that even mean? Sounds like something a Hindu bigot would say. For that the present day Muslims should pay?
3. J&K? Do you know what the conditions there are? It's not like Punjab, where Sikhs enjoy a majority.
4. They were not, at least just after independence. But the reality is that they're still discriminated against (denied jobs, places for carrying out business, renting homes/apartments) - Now, this is about the affluent Muslims, who don't come under the schemes government provides. The majority of Muslims in India are one of the poorest communities in India, with one of the lowest spending per capita.
5. It is according to the Hindu Nationalist manifesto. Read the philosophy of RSS once and their actions; you'll understand. It is almost the same as that of Taliban and their ilk, but they hide under the pretext of patriotism. Moreover, this point is moot as affirmative action in India is more about removing the barriers of social discrimination.