A hangman who hangs the prisoners pursuant to the order of the court is exempt from criminal liability by virtue of

Option (1) is incorrect: Section 76 of the IPC provides for acts done by a person bound, or by mistake of fact believing himself bound, by law. Option (2) is correct: Section 78 of the IPC provides for act done pursuant to the judgment or order of the court. Option (3) is incorrect: Section 77 of the IPC provides for act of judge when acting judicially. Option (4) is incorrect: Section 80 of the IPC provides for accident in doing a lawful act.