In reality, [Section 66A of the IT Act of 2000] is more often used by
the state as a weapon against dissent. In each such case, police action
has been swift and harsh.
We have have a very similar law in the UK, Section 5 of the Public Order Act 1986, and I'm sure it won't be long before something similar is proposed in the US after the 'innocence of muslims' debacle / tragedy (which is exactly the kind of thing that the UK law was brought in for, but has been similarly abused by the authorities).
We also have rather interesting laws surrounding libel in the UK... India seems to be a bit more sane on that front at least.
That's your best chance of effecting any change in India from the US as a private individual.