In section 193 of the Income-tax Act, in the proviso, after clause (iii), the following clause shall be inserted with effect from the 1st day of June, 1982, namely :-
"(iiia) any interest payable on such securities of the Central Government or a State Government, to such class of persons, and subject to such conditions, as the Central Government may, by notification in the Official Gazette, specify in this behalf;".