Indian Penal Code, 1860
334. Voluntarily causing hurt on provocation
Whoever voluntarily causes hurt on grave and sudden provocation,
if he neither intends nor knows himself to be likely to cause hurt to any
person other than the person who gave the provocation, shall be punished with
imprisonment of either description for a term which may extend to one month, or
with fine which may extend to five hundred rupees, or with both.