Evidence Act, 1851

Parties to be admissible witnesses.

2. On the trial of any issue joined, or of any matter or question, or on any inquiry arising in any suit, action, or other proceeding in any court of justice, or before any person having by law, or by consent of parties, authority to hear, receive, and examine evidence, the parties thereto, and the persons in whose behalf any such suit, action, or other proceeding may be brought or defended, shall, except as herein-after excepted, be competent and compellable to give evidence, either vivâ voce or by deposition, according to the practice of the court, on behalf of either or any of the parties to the said suit, action, or other proceeding.