Amendment of section 50.

In the Principal Act, in section 50, in sub-section (1), for the punctuation mark ".", the punctuation mark (:) shall be substituted and thereafter the following new proviso shall be inserted, namely: — “Provided that the interest on tax payable in respect of supplies made during a tax period and declared in the return for the said period furnished after the due date in accordance with the provisions of section 39, except where such return is furnished after commencement of any proceedings under section 73 or section 74 in respect of the said period, shall be levied on that portion of the tax that is paid by debiting the electronic cash ledger.”.