Section 91A(9) in The Mumbai Municipal Corporation Act, 1888
(9)[The [State] [The words 'the Provincial Government' were substituted for the word 'Government' by the Adaptation of Indian Laws Order in Council.] Government] may, by notification in the [Official Gazette] [The words 'Official Gazette' were substituted for the words 'Bombay Government Gazette' by the Adaptation of Indian Laws Order in Council.], from time to time add to or amend the entries in Schedule W and, with the concurrence of the corporation, the entries in Schedule X so far as may be necessary in consequence of any exchange, resumption, acquisition or other transfer of land, and, with the like concurrence in the case of lands specified in Schedule X, correct mistakes in the said schedules or in the deposited plants, and upon such notification the said schedules or plans shall be read subject to such addition, amendment or correction. Such notification shall in the case of any alteration of Schedule W or Schedule X include a notification of the whole schedule or schedules as so altered.]