law: 75. Presiding officer.
  (1) The Mayor or in his absence, the Deputy Mayor, shall preside at every meeting of the Corporation.
  6[(2) In the absence of both the Mayor and Deputy Mayor from the meeting, the members and the persons referred to in sub-clauses (ii), (iii) and (iv) of clause (b) of sub-section (3) of section 3 shall elect one from among the councillors to preside.]
  (3) The Mayor or the person presiding over a meeting shall have and exercise a second or a casting vote in all cases of equality of votes.