No act or proceeding of the Board shall be invalid merely by reason of—
(a) any vacancy in, or any defect in the constitution of, the Board; or
(b) any defect in the appointment of a person acting as a member of the Board; or
(c) any irregularity in the procedure of the Board not affecting the merits of the case.
11. Temporary association of persons with the Board for particular purposes.
1. The Board may associate with itself, in such manner and for such purposes as may be determined by regulations, any person whose assistance or advice it may desire in carrying out any of the provisions of this Act.
2. A person associated with it by the Board under sub-section (1) for any purpose shall have a right to take part in the discussions relevant to that purpose, but shall not have a right to vote at a meeting of the Board and shall not be a member for any other purpose.