6. (1) The Council shall meet at least twice in a year at such time and place, and shall be summoned in such manner, as may be prescribed: Provided that until regulations are made, the President may call a meeting of the Council by sending notice to each member. (2) To constitute a quorum at a meeting of the Council not less than five members shall be present. (3) All meetings of the Council shall be presided by the President and in his absence, by a member who is a Registered Veterinary Practitioner elected by the members present at the meeting. (4) All questions at a meeting of the Council shall be decided by a majority of the members present and voting, and in the case of an equality of votes, the person presiding shall have a second or casting vote. (5) No act done by the Council shall be invalid merely on the ground of the existence of any vacancy in, or any defect in the constitution of, the Council.