A five-judge Constitution bench was unanimous in holding Section 497 of the Indian Penal Code, dealing with the offence of adultery, as unconstitutional and struck down the penal provision.
Section 497 of the 158-year-old IPC says: "Whoever has sexual intercourse with a person who is and whom he knows or has reason to believe to be the wife of another man, without the consent or connivance of that man, such sexual intercourse not amounting to the offence of rape, is guilty of the offence of adultery." The offence of adultery entailed a maximum punishment of five years, or with fine, or both.