Family of the boy in Rajasthan says he was harassed by two of his teachers who used casteist slurs against him and that the school principal did not take action even after complaints
3 points
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They practice it because those in power in those communities
- benefit from it and
- are descendants of oppressor upper castes who converted to Islam or Christianity . They changed their religion, but refuse to be civilised even though both Islam & Christianity are religions of equality.
Sikhism was created to rebel against Hindu casteism, yet nowadays we can see caste is prominent in Sikhs as well and for the same 2 reasons.