(4)Without prejudice to the provisions of sub-section (3), where a trust or an institution has been granted registration under clause (b) of sub-section (1) or has obtained registration at any time under section 12A [as it stood before its amendment by the Finance (No. 2) Act, 1996 (33 of 1996)] and subsequently it is noticed that(a)[the activities of the trust or the institution are being carried out in a manner that the provisions of sections 11 and 12 do not apply to exclude either whole or any part of the income of such trust or institution due to operation of sub-section (1) of section 13; or(b)the trust or institution has not complied with the requirement of any other law, as referred to in sub-clause (ii) of clause (a) of sub-section (1), and the order, direction or decree, by whatever name called, holding that such non-compliance has occurred, has either not been disputed or has attained finality,then, the Principal Commissioner or the Commissioner may, by an order in writing, cancel the registration of such trust or institution:]Provided that the registration shall not be cancelled under this sub-section, if the trust or institution proves that there was a reasonable cause for the activities to be carried out in the said manner.
