Section 66A(6) in The Maharashtra Municipal Councils, Nagar Panchayats And Industrial Townships Act, 1965
(6)In the event of the office of the Chairperson falling vacant before the expiry of its term, the Wards Committee shall elect a new Chairperson:Provided that, the Chairperson so elected shall hold office so long only as the Chairperson in whose place he is elected would have held office if such vacancy had not occurred.