S. 254(2) : Appellate Tribunal-Rectification of mistake apparent from the record-Order of CIT(A) is without DIN-Issue did not form part of appeal-Assessee could not rectify his own lapse or mistake in miscellaneous application-Cash found and seized-Demonetized notes-Addition is made not merely on the basis of statement-Miscellaneous application is rejected-Amendment made in section 115BBE by Amending Act, 2016 prescribing higher rate of tax would apply to whole previous year 2016-17 relevant to assessment year 2017-18 even if requisition under section 132A of the Act-Miscellaneous application is rejected-Cash found with assessee was made on 14-11-2016-Cash seized by department-To be adjusted against tax liability of assessee was in nature of self-assessment payment-Adjusted while computing the interest u/s 234A. [S.115BBE 132A 140A]