S. 148A : Reassessment-Conducting inquiry, providing opportunity before issue of notice-Original notice under section 148 issued before 1-4-2021 culminated in reassessment order attaining finality-Fresh notice under section 148A(b) impermissible-Supreme Court directions in UOI v. Ashish Agarwal limited to pending reassessment proceedings-Notice and order quashed. [S. 147, 148, 148A(b), 148A(d), Art. 226]