Section 149 of the Income Tax Act: Time limit for notice
(1) No notice under section 148 shall be issued for the relevant assessment year,—
(a) if three years have elapsed from the end of the relevant assessment year, unless the case falls under clause (b);
(b) if three years, but not more than ten years, have elapsed from the end of the relevant assessment year unless the Assessing Officer has in his possession books of account or other documents or evidence which reveal that the income chargeable to tax, represented in the form of asset, which has escaped assessment amounts to or is likely to amount to fifty lakh rupees or more for that year:
Provided that no notice under section 148 shall be issued at any time in a case for the relevant assessment year beginning on or before 1st day of April, 2021, if such notice could not have been issued at that time on account of being beyond the time limit specified under the provisions of clause (b) of sub-section (1) of this section, as they stood immediately before the commencement of the Finance Act, 2021:
Provided further that the provisions of this sub-section shall not apply in a case, where a notice under section 153A, or section 153C read with section 153A, is required to be issued in relation to a search initiated under section 132 or books of account, other documents or any assets requisitioned under section 132A, on or before the 31st day of March, 2021:
Provided also that for the purposes of computing the period of limitation as per this section, the time or extended time allowed to the assessee, as per show-cause notice issued under clause (b) of section 148A or the period during which the proceeding under section 148A is stayed by an order or injunction of any court, shall be excluded:
Provided also that where immediately after the exclusion of the period referred to in the immediately preceding proviso, the period of limitation available to the Assessing Officer for passing an order under clause (d) of section 148A is less than seven days, such remaining period shall be extended to seven days and the period of limitation under this sub-section shall be deemed to be extended accordingly.
Explanation.—For the purposes of clause (b) of this sub-section, “asset” shall include immovable property, being land or building or both, shares and securities, loans and advances, deposits in bank account.
(2) The provisions of sub-section (1) as to the issue of notice shall be subject to the provisions of section 151.]