Acts and proceedings of Board and Committee to be presumed to be valid.

(1) No act done in good faith in pursuance of the functions of the Board shall be deemed to be invalid by reason only of some defect subsequently discovered either in the constitution of the Board or in the constitution of any Committee or in the appointment or selection of an officer or on the ground that such officer was disqualified for his office. (2) No act done in good faith by any person appointed under this Act, rules and regulations shall be invalid merely by reason of the fact that his appointment has been cancelled by or in consequence of any other order passed subsequently under this Act or any rules and regulations made thereunder. (3) The Board shall decide whether any act was done in good faith in pursuance of the functions of the Board and the decision thereon shall be final.