Actually, I think that there has been a lot of flux in many faiths in India from what my Indian friends have told me. Christianity was originally a primary religion in India as Saint Thomas went there with the gospel in early Christian history. Asia is seeing a rebirth of Christianity.
I also have heard there is a great deal of persecution of Christians in places like Orissa...things like killing and torture for their faith. I believe that Hinduism, Christianity, and Islam will always be side by side as major religions in the world. As each religion claims to love peace, we should see this lived out in all who make the proclamation.
The thing we never want to see is any state sanctioned religion as there was during the crusades where force was the mode of faith. We need to practice a peaceful existence, even when we don't share the same faith.