Category IXIndian Evidence Act, 1872
Indian Evidence Act Section 120: Parties to the civil suit, and their wives or husbands, Husbands or wives of a person under criminal trial
In all civil proceedings the parties to the suit, and the husband or wife of any party to the suit, shall be competent witnesses. In criminal proceedings against any person, the husband or wife of such person, respectively, shall be a competent witness.