Step 1: Understand the Bharatiya Nyaya Sanhita (BNS).
The BNS, 2023, is the new penal code of India, replacing the old Indian Penal Code (IPC), 1860. It has redefined some offenses and introduced new ones.
Step 2: Analyze the status of the offenses in the options.
Attempt to Suicide: This was an offense under the IPC but has been effectively decriminalized in most cases under the new BNS.
Adultery: This was an offense under the IPC but was struck down as unconstitutional by the Supreme Court in 2018. It has not been re-introduced in the BNS.
Sedition: This was an offense under the IPC. The BNS has replaced it with a new provision on "acts endangering sovereignty, unity and integrity of India," with a changed definition.
Mob Lynching: There was no specific, separate offense of "mob lynching" in the old IPC. Such acts were prosecuted under general sections like murder, culpable homicide, or rioting. The BNS, for the first time, has newly introduced a specific provision defining and punishing mob lynching as a distinct crime.
Step 3: Conclude the correct answer.
The creation of a separate and specific offense for mob lynching is the most significant "newly introduced" provision among the given options.