Section 9(2)(c) in The Maharashtra Municipal Councils, Nagar Panchayats And Industrial Townships Act, 1965
(c)the number of seats, if any, to be reserved for the Scheduled Castes or the Scheduled Tribes so that such number shall bear, as nearly as may be, the same proportion to the number of elected Councillors as the population of the Scheduled Castes or of the Scheduled Tribes, in the municipal area bears to the total population of that area.