Table of contents
Vedas
Bhagavad Gita
Ramayana
Mahabharata
Upanishads
Puranas
Manusmriti
Source: sacred-texts.com/hin/manu.htm
MS VIII.270
A once-born man (a Sudra), who insults a twice-born man with gross invective, shall have his tongue cut out; for he is of low origin.
MS VIII.271
If he mentions the names and castes (gati) of the (twice-born) with contumely, an iron nail, ten fingers long, shall be thrust red-hot into his mouth.
MS VIII.272
If a once-born man (a Sudra), arrogantly teaches Brahmanas their duty, the king shall cause hot oil to be poured into his mouth and into his ears.
MS VIII.374
A Sudra who has intercourse with a woman of a twice-born caste (varna), guarded or unguarded, (shall be punished in the following manner): if she was unguarded, he loses the part (offending) and all his property; if she was guarded, everything (even his life).