IPC Section 191 is now BNS Section 227

IPC 191 (Giving false evidence) → BNS 227 Giving false evidence

Verbatim · BNS 227227. Giving false evidence.— Whoever, being legally bound by an oath or by an express provision of law to state the truth, or being bound by law to make a declaration upon any subject, makes any statement which is false, and which he either knows or believes to be false or does not believe to be true, is said to give false evidence.

Read the full BNS Section 227 →

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.