Even if being a Hindu is who they are?
You're suggesting that a Muslim man, living in a Muslim world, surrounded by a Muslim family and Muslim friends, who is trying to follow Jesus, should live a life identical to a high school kid going to private school in the Bible belt? I just don't see the logic behind that.
In my own experience, the Christians that I know in India live lives that are very different than I live, over here in America. Are you saying that one of us is wrong, and one of us is right? How can you tell which? They have Biblical support for their lifestyle, and I have what I believe to be Biblical support for mine. I'm sure that if we were in the same culture, our lives would look more similar, but that's simply not the case.