I'm just saying. Learn a little bit about Hinduism first. Indiana Jones isn't a reliable source. Not that I want you to believe it's true...but if you are going to be against something, understand what the person or faith teaches first.
Example: I don't agree with Advaita Vedanta, a school of Hinduism, because I don't believe in an entity called Brahman/Atma/The Self which is the only reality, and that everything else is illusionary. I don't believe all else is Maya. I believe everything is real, because God created it, and God is real; therefore, everything God creates is real.
That, at least, will bring about good dialogue between you and a Hindu (or a person of any other religion, really). Take time to understand their faith. You know how Catholics get annoyed when people go "lol Mary worshiper"? Or how annoying it is when people accuse us of worshiping saints? When people call the Eucharist "cannibalistic"?
Well, Hindus get annoyed when we go "lol cow worshiper" and go "OMB guys I watched Indiana Jones and the Temple of Doom scary huh they akshully believe that lol" If (in general terms, not directed at anyone in particular) you are going to disagree and be against something...yelling "PAGANS" at the top of your lungs really loudly isn't going to change any minds.
And really, as an aside; Hinduism is an umbrella term for many, many different faiths and religions. There are so many sects and subsects, you could honestly go crazy trying to learn about them all.