In my opinion Hinuism is one of the most all inclusive religions I have encountered. I think rather than as a form of control, it really intend to liberate a person from this material world. One Hindu poem says that if you pray to any God or honor any God you are really praying to Bhraman. Even though Hinduism has litterally 330 million "Gods", Brahman is considered the supreme God, which is all and none, the alpha and omega and completely inconsievable. But people are encouraged to seek out that unknowable divity through avatars such as Vishnu or any of the other many Gods in Hindu culture. That's the actual religion. As far as how it's been used, well I'm sure there are Hindu preist and Bhramin who have used religion to control others. Hinduism as a religion I think is used far less to control others. I think that comes down to Hindu culture. Their cast system and arranged marriages are much bigger tools of control than religion. Of course you do have Hindu fanatics and any fundamentalist view tends to brain wash its followers.
As far as contrasting Christianity and Hinduism, well in my opinion the two religions are backwards from each other in most aspects.
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