Held that the  time permitted for filing an application under section 254(2), for rectifying a mistake in an order passed by Tribunal under section 254(1) is six months from end of month in which order under section 254(1) was passed.  The Appellate Tribunal being a creature of Statute could not have extended its jurisdiction beyond what was expressly conferred on it under Statute and thus, it could not have granted liberty to revenue to file rectification applications to restore appeals beyond period permitted under Statute. Order of Tribunal is set aside. Referred, Madanlal Arora v. The Excise and Taxation Officer, Amritsar  AIR 1961, SC 1565, Smt. Ujjam Bai v. State of Uttar Padesh  AIR 1962 SC 1621, wherein the Courts have held that the Appellate Tribunal being a creature of the Statute cannot extend its jurisdiction beyond what is expressly conferred on it under the Statute.  (AY. 2012-13 & 2015-16)