(4)Notwithstanding anything to the contrary contained in this Act, where, in any previous year, the assessee has received or credited any sum from any person located in a notified jurisdictional area and the assessee does not offer any explanation about the source of the said sum in the hands of such person or in the hands of the beneficial owner (if such person is not the beneficial owner of the said sum) or the explanation offered by the assessee, in the opinion of the Assessing Officer, is not satisfactory, then, such sum shall be deemed to be the income of the assessee for that previous year.
