S. 147 : Reassessment -Notice after six years-Sanction-Notice dated 30-3-2021 issued under old provision after coming into effect of new provision from 1-4-2021 -UOI v. v. Ashish Agarwal(2022) 444 ITR 1 (SC) – Notice and subsequent orders and proceedings are quashed. [S. 148, 151, Art,226]