S. 147 : Reassessment-After the expiry of four years-Search and seizure-Original assessment made pursuant to search and seizure based on appraisal report and materials seized during search and seizure operations-Reassessment notice based on audit objection which was based upon same appraisal report-Notice not based on new material coming to notice of Assessing Officer-Not sustainable–Limitation Four to six years counted from end of assessment year Notice for assessment year 2014-2015 dated 31-3-2021 not barred by limitation–Reassessment-Notice after four years-Sanction of prescribed authority-Law before amendment with effect from 1-4-2021-Principal Commissioner competent to accord permission for reopening of assessments beyond four years-Assessing Officer digitally signing notice on 31-3-2021 at 7.01 p.m.-Notice goes beyond control of Assessing Officer at that moment Notice within prescribed time limit-Generation of document identification number by online portal on 1-4-2021 would not render notice barred by limitation. [S.132, 148, 149(1)(b), 151, Art.226] .