Section 144 of Indian Penal Code. "Joining unlawful assembly armed with
deadly weapon"

Whoever, being armed with any deadly weapon, or with anything which, used as
a weapon of offence, is likely to cause death, is a member of an unlawful
assembly, shall be punished with imprisonment of either description for a term
which may extend to two years, or with fine, or with both.

Section 145 of Indian Penal Code. "Joining or continuing in Unlawful
Assembly, knowing it has been commanded to disperse "

Whoever joins or continues in an unlawful assembly, knowing that such unlawful
assembly has been commanded in the manner prescribed by law to disperse, shall
be punished with imprisonment of either description for a term which may extend
to two years, or with fine, or with both.