The reason why Ambedkar disagreed with Gandhi on the role of religion was due to the fact that he advocated for a national unity that would bring about the destruction of the caste system in India.
This person was an advocate for equality in the Indian subcontinent. He believed that the caste system in the country was evil.
So according to him, before the nation could get equality and unity, it had to be destroyed.
This was against the reformation of religion principle that Gandhi believed in.
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