Short answer

They rank people by birth and punish the Shudra, the servant class, more harshly for the same act. Manu says a Shudra who insults a man of the higher castes shall have his tongue cut out, "for he is of low origin". A Brahmin who insults a Shudra pays a small fine. Killing a Brahmin is a mortal sin, but killing a Shudra is only a minor one. The Chandalas, the lowest outcastes, must live outside the village and wear the clothes of the dead. The Gautama law book says a Shudra who listens to the Veda on purpose shall have his ears filled with molten tin or lac. Shankara and Ramanuja, the two most influential Vedanta teachers, repeated that rule. The Qur'an does the opposite. It tells Muslims to shelter even a hostile pagan "so that he may hear the word of Allah".

Read the full explanation

See your saved pages