(1)The Tribunal and the Appellate Tribunal shall not, while disposing of any proceeding before it or, as the case may be, an appeal before it, be bound by the procedure laid down in the Code of Civil Procedure, 1908 (5 of 1908), but shall be guided by the principles of natural justice, and, subject to the other provisions of this Act and of any rules made thereunder, the Tribunal and the Appellate Tribunal shall have power to regulate their own procedure.