Section 16(1D) in The Mumbai Municipal Corporation Act, 1888
(1D)A Councillor shall be disqualified for being a Councillor, if such Councillor has constructed or constructs by himself, his spouse or his dependent, any illegal or unauthorised structure violating the provisions of this Act or the Maharashtra Regional and Town Planning Act, 1966 or the rules or bye-laws framed under the said Acts; or has directly or indirectly been responsible for, or helped in his capacity as such Councillor, in carrying out such illegal or unauthorised construction or has by written communication or physically, obstructed or tried to obstruct any Competent Authority from discharging its official duty in demolishing any illegal or unauthorised structure. Such disqualification shall be for the remainder of his term as a Councillor from the date of the declaration of such structure to be illegal or unauthorised by the concerned authority under the provisions of the said Acts or, as the case may be, from the date of commission of the act of interference or obstruction by the Councillor against the Competent Authority.]