Amendment of Section 12

In Section 12 of the Principal Act, after sub-section (4), the following new sub-section shall be inserted, namely. - "(5) If any person who is registered under Section 3A fails to pay the tax on or before the last day of the following month of the quarter next, interest at 12% (twelve per centum) per annum shall be payable for the duration of the default: Provided that no interest under this sub-section shall be payable if the tax paid by the due date is not less than 90% (ninety per centum) of the tax payable."