Section 66B(b) in The Maharashtra Municipal Councils, Nagar Panchayats And Industrial Townships Act, 1965
(b)the territorial extent of each area, which shall necessarily include the entire geographical territory in which all persons mentioned in the electoral roll of any polling booth in such territory, or, if the Government so decides, two or more contiguous polling booths (not exceeding five such polling booths) in such territory, are ordinary resident.