(5)Notwithstanding anything contained in sub-sections (1) to (4), no deduction under this section shall be allowed in respect of any assessment year commencing on or after the 1st day of April, 2018 :Provided that an assessee, who has acquired listed equity shares or listed units of an equity oriented fund in accordance with the scheme referred to in sub-section (1) and claimed deduction under this section for any assessment year commencing on or before the 1st day of April, 2017, shall be allowed deduction under this section till the assessment year commencing on the 1st day of April, 2019, if he is otherwise eligible to claim the deduction in accordance with the other provisions of this section.Explanation.—For the purposes of this section, "equity oriented fund" shall have the meaning assigned to it in the Explanation to clause (38) of section 10.