Section 508(2) in The Madurai City Municipal Corporation Act, 1971
(2)All taxes, fees and duties which, immediately before the commencement of this Act, were being levied by the Madurai municipality, shall be deemed to have been levied by the corporation under the provisions of this Act and shall continue to be in force accordingly until such taxes, fees and duties are revised, cancelled or superseded, by anything done or any action taken under this Act.