Power to punish for contempt: tribunals have same contempt powers as High Court under Contempt Act, subject to specified modifications. Section 425 empowers the Tribunal and the Appellate Tribunal to exercise the same jurisdiction, powers and authority in respect of contempt as the High Court by invoking the Contempt of Courts Act, 1971, subject to two modifications: references to the High Court include the Tribunal and Appellate Tribunal, and the reference to Advocate-General is read as a reference to Law Officers specified by the Central Government.