(2)The following income shall not be included in the total undisclosed income of the block period:––(a)the total income determined or assessed, as the case may be, under section 270(1) or (10) or section 271 or 279 or 294(1)(c) of this Act or section 143 or 144 or 147 or 153A or 153C or 158BC or 245D(4) of the Income-tax Act, 1961 prior to the date of initiation of the search or the date of requisition, in respect of any of the tax year falling within the block period;(b)the total income declared in the return of income filed under section 263 of this Act or section 139 of Income-tax Act, 1961, or in response to a notice under section 268(1) of this Act or section 142(1) of Income-tax Act, 1961 prior to the date of initiation of the search or the date of requisition, in respect of any of the tax year falling within the block period, and not covered under clause (a);(c)the income computed by the assessee, in respect of––(i)a tax year, where such tax year has ended and the due date for furnishing the return for such year has not expired prior to the date of initiation of the search or the date of requisition, on the basis of entries relating to such income or transactions as recorded in the books of account and other documents maintained in the normal course before the date of initiation of search or the date of requisition;(ii)the period commencing from the 1st April of the tax year in which the search is initiated or requisition is made and ending on the day immediately preceding the date of initiation of search or requisition, on the basis of entries relating to such income or transactions as recorded in the books of account and other documents maintained in the normal course for such period on or before the day immediately preceding the date of initiation of search or the date of requisition;(iii)the period commencing from the date of initiation of the search or the date of requisition and ending on the date of the execution of the last of the authorisations for search or requisition, on the basis of entries relating to such income or transactions as recorded in the books of account and other documents maintained in the normal course for such period on or before the date of the execution of the last of the authorisations;(d)the total income referred to in section 207(8) or section 216 or section 393(1) [ Table: Sl. No. 8(iii)] of this Act, or section 115A(5) or section 115G or 194P(1) of the Income-tax Act, 1961.