You must actively participate in the unlawful assembly to be punished under this section.

The law only requires that you knowingly let your property be used to shelter or gather people hired for an unlawful assembly — you don't have to join the assembly yourself.

This section only applies if the unlawful assembly actually causes violence or harm.

The offence is complete once you knowingly harbour or gather the hired persons; it doesn't require the unlawful assembly to have already acted or caused damage.

Indian Penal Code, 1860

Section 157

repealed

Harbouring persons hired for an unlawful assembly

Whoever harbours, receives or assembles, in any house or premises in his occupation or charge, or under his control any persons knowing that such persons have been hired, engaged or employed, or are about to be hired, engaged or employed, to join or become members of an unlawful assembly, shall be punished with imprisonment of either description for a term which may extend to six months, or with fine, or with both.§

Why this exists

The Indian Penal Code of 1860 created a chain of offences around unlawful assemblies (defined in Section 141) to stop group violence and riots before they escalate. Sections 150 and 157 target the support system behind such assemblies — the people who hire others to join a mob and those who shelter or gather these hired participants. Colonial-era lawmakers wanted to discourage not just the rioters themselves but also those who facilitated riots by providing safe houses or meeting spots, recognising that organised unlawful assemblies often need logistical support to form.

Common misconceptions

Myth: You must actively participate in the unlawful assembly to be punished under this section.
Fact: The law only requires that you knowingly let your property be used to shelter or gather people hired for an unlawful assembly — you don't have to join the assembly yourself.
Myth: This section only applies if the unlawful assembly actually causes violence or harm.
Fact: The offence is complete once you knowingly harbour or gather the hired persons; it doesn't require the unlawful assembly to have already acted or caused damage.