(3)Where, in a tax year, any benefit, exemption or relief has been claimed and granted as per the provisions of sub-section (1) and, subsequently, there is failure to comply with any of the conditions specified in the scheme or in the notification issued under the said sub-section then,—(a)such benefit, exemption or relief shall be deemed to have been wrongly allowed;(b)the Assessing Officer may, irrespective of anything in this Act, re-compute the total income of the assessee for the said tax year and make the necessary amendment; and(c)the provisions of section 287 shall, so far as may be, apply thereto and the period of four years specified in sub-section (8) of that section being reckoned from the end of the tax year in which the failure to comply with the condition referred to in sub-section (1) takes place.