The Indian religion does have caste. But it isnt hierarchical. For example the greatest epic of hinduism the ramayana was written by Valmiki a so called lower caste. The Hindu god Krishna was born a cow herd another lower (and one of the most powerful castes in india today) Most of india's saints and its religious leaders today come from the so called lower castes.
The Brits managed to exploit caste divisions and created a theory of lower and upper castes. This helped the british to divide and conquer the natives and i daresay in promoting prosleytisation. This theory of "lower" and "upper" caste has no correlation to political or economic power. For example the brahmins in india are well educated but not economically well off.
As it is india is witnessing a social revolution where it is "advantageous to be a lower caste"!!!! by the way much of the hindu right is also made up of lower castes including the man quoted in this article Mr.Modi.
But the strict, fanatical Hindus who go around murdering Christians and burning churches would pretty certainly like to restore the caste system if they had the power to do so. And probably burn widows, too. The question is, do they have the power to turn back the clock on things like that? Hopefully not. The leaders of Hindu nationalism are pretty ruthless, but they just don't have the kind of following any more that the Muslim leaders have.
If the leaders of hindu nationalism are ruthless they would have made india an extreme right wing dictatorship when they were in power. But they lost an election and exited out of office. As regards to that comment about burning indian widows - i would attribute that to anti hindu propaganda.
With the islamic threat it doesnt make any sense for us to go and keep baiting hindus as some christians extremists are trying to do. We need the buddhists, atheists, hindus, zorastrians on our side and not against us.
Well, I agree we need the Hindus on our side if possible. But I don't think it makes much sense for them to close down a leper colony that has taken good care of these people for a long time. Hopefully this can be quietly worked out.