Section 414A(3) in Chennai City Municipal Corporation Act, 1919
(3)All taxes, fees and duties, except in respect of water supply and sewerage services, which immediately before the date of such Notification, were being levied by such municipal council, panchayat union council or village panchayat, as the case may be, 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of this Act and shall continue to be in force accordingly until such taxes, fees and duties are revised, cancelled or superseded by, anything done or any action taken under this Act.