Section 346(a) in The Maharashtra Municipal Councils, Nagar Panchayats And Industrial Townships Act, 1965
(a)every local area within the jurisdiction of an existing Council immediately before the appointed day shall be deemed to be declared a municipal area under this Act and shall be called by the corresponding name given thereto in Schedule I and shall belong to such Class under which it is specified in that Schedule and the Council therefor shall be called by the name specified against it in column 3 of the said Schedule;