S. 254(2): Appellate Tribunal-Rectification of mistake apparent from the record-Binding precedent-Decision of High Court is binding on all Income-Tax Authorities under its jurisdiction-Set off of business loss-Failure to follow the order of the Tribunal which is affirmed by the High Court-Mistake apparent on record-Order of the Tribunal is set aside. [S.28(i), 56, 254(1), Art. 226]