10. (1) The meetings of the Board shall be held at such times and at such places as may be prescribed: Provided that a meeting may also be otherwise convened by the Chairman when he so thinks fit. (2) To constitute a quorum at a meeting of the Board not less than three Directors including the Chairman shall be present. (3) At a meeting of the Board each Director shall have one vote, and in the event of equality of votes the Chairman shall have a second or casting vote. (4) No Director shall vote on any matter in which he is directly or indirectly interested. (5) If for any reason the Chairman is unable to be present at a meeting of the Board, a Director authorised in writing by the Chairman shall preside at the meeting.