Section 17(1)(b) in The Gujarat Town Planning and Urban Development Act, 1976
(b)Where a development plan and regulations are returned to an area development authority, or, as the case may be, the authorised officer under sub-clause (ii) of clause (a), the area development authority, or, as the case may be, the authorised officer, shall carry out the modifications therein as directed by the State Government and then submit them as so modified to the State Government for sanction; and the State Government shall thereupon sanction them after satisfying itself that the modification suggested have been duly carried out therein.