IPC Section 143 is now BNS Section 189(2)

IPC 143 (Punishment for being member of unlawful assembly) → BNS 189(2) Unlawful assembly

Verbatim · BNS 189(2)(2) Whoever, being aware of facts which render any assembly an unlawful assembly, intentionally joins that assembly, or continues in it, is said to be a member of an unlawful assembly and such member shall be punished with imprisonment of either description for a term which may extend to six months, or with fine, or with both.

Read the full BNS Section 189 →

Offences committed before 1 July 2024 are still charged and tried under the IPC; the BNS applies to offences on or after that date.

Old-to-new correspondence is indicative and not always one-to-one; read the new text itself.