Section 44AD(1) in Chennai City Municipal Corporation Act, 1919
(1)The councillors constituting three-fifth of the sanctioned strength of the council may, by written notice, presented by any two of them, to the Commissioner, with a copy to the Mayor, express their intention to make a morion against the Mayor that the Mayor willfully omits or refuses to carry out or disobeys any provision of this Act, or any rule, by-law, regulation, or lawful order made or issued under this Act or abuses any power vested in him. The Commissioner shall, on receipt of such notice, convene a special meeting for the consideration of the motion and record the views of the council, at the office of the municipal corporation at a date appointed by the Commissioner. The motion shall be deemed to have been passed by the council if four-fifth of sanctioned strength of the council present and voting, is in favour of it; and if it is not passed by four-fifth of the sanctioned strength of the council present and voting, it shall be treated as dropped.