Hinduism is not about casteism, it is about the right way of living.
I'm not here to preach our religion to all who know about it. Even our muslim brothers know it well because its in their blood. Because they have been hindus for milleniums but muslims only for a few centuries (maybe 3).
Hindu brothers, do not admonish our wayward brothers who have lost the path, show them the path back.
My earnest request to all muslim brother to come back to the true faith
