Section 84 Indian Penal Code
Section 84 of the Indian Penal Code 1860 is about Act of a person of unsound mind. It is under CHAPTER IV (GENERAL EXCEPTIONS) of the Code.
Act of a person of unsound mind
Nothing is an offence which is done by a person who, at the time of doing it, by reason of unsoundness of mind, is incapable of knowing the nature of the act, or that he is doing what is either wrong or contrary to law.