That's awesome, then you might know what I'm talking about. I was raised in two religous cultures from my family. Christian (from my mom and several other members of my family), and Baha'i (from my dad). From my mom we didn't have a specific denomination we went to church through, and from my dad as far as I'm aware his religion hasn't split into different sects or denomations. You probabley had to rely heavily on the bible to sift through the different perspectives and philosophies of Christianity to try and understand what's right by the bible, and what isn't from God. For the most part I think that's how I've found my foundation in Christianity.
I've been told something simular, and believe me it is something I struggle with. But take heart in this. Those who told my dad his religion was false, from Satan, or that he was going to hell(or anything simular); they weren't angry church members, or a mob outside his home. They were his brother and his mom who are both Christian and worry about him. As angry as the talks went it was largely between a dynamic of my dad wanting to be accepted or at least not said he was going to hell, and my uncle and grandma worried about my dad and wanting to save him.
Take heart because when someone warns another about hell, usually it's because they care enough to try to save them. At least that's my observation. That said I understand the point of saying you are not an authority for who goes to heaven and who doesn't. I have to hold a simular perspective because I can not hold out for answers that condemn my father. (At least not yet in my life.). The bible does say that Jesus is the only way though. It also says that when the nation's will be judged they will be seperated into two groups with those who cared for the poor, the sick, the homeless, and the imprisoned; and the other group who did not care for any of them. Our works and our love and mercy are part of the equation. Who and how God chooses to save, that is His authority. It is still no less true though that Jesus is the way to God.
That's a good approach. Having the bible as the real foundation.
I really don't know much about Hindu people or the culture around it. I know about Christian, Baha'i, and some who don't believe in God at all. I know those from experience, the limited amount that I've experienced with each. Everyone else I've been taught about teaches one thing or another concerning others or themselves, often to be corrected when I see it face to face how it really is.
Everyone is innocent and a good person until you see where they are hypocritical or hold the standards but don't live up to them. The more you see this the more you understand that we all think of ourselves as good, and many strive to be good, but the reality is we all fall short.