Section 153B of ITA, 1961 : Section 153B: Time-Limit For Completion Of Assessment Under Section 153A

(1) Notwithstanding anything contained in section 153, the Assessing Officer shall make an order of assessment or reassessment, -

1. in respect of each assessment year falling within six assessment years and for the relevant assessment year or years referred to in clause (b) of sub-section (1) of section 153A, within a period of twenty-one months from the end of the financial year in which the last of the authorisations for search under section 132 or for requisition under section 132A was executed;
2. in respect of the assessment year relevant to the previous year in which search is conducted under section 132 or requisition is made under section 132A, within a period of twenty-one months from the end of the financial year in which the last of the authorisations for search under section 132 or for requisition under section 132A was executed:

Provided that in case of other person referred to in section 153C, the period of limitation for making the assessment or reassessment shall be the period as referred to in clause (a) or clause (b) of this sub-section or nine months from the end of the financial year in which books of account or documents or assets seized or requisitioned are handed over under section 153C to the Assessing Officer having jurisdiction over such other person, whichever is later:

Provided further that in the case where the last of the authorisations for search under section 132 or for requisition under section 132A was executed during the financial year commencing on the 1st day of April, 2018, -

1. the provisions of clause (a) or cl

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