Section 150. Validation of acts and proceedings.

(1) No act done or proceeding taken under this Act shall be questioned on the ground merely of- (a) the existence of any vacancy in, or any defect in the constitution of a Regional Board, Planning Authority or Development Authority; (b) any person having ceased to be a member; (c) any person associated with a Regional Board, under section 10 having voted in contravention of the said section; or (d) the failure to serve a notice on any person, where no substantial injustice has resulted from such failure; or (e) any ommission, defect or irregularity not affecting the merits of the case. (2) Every meeting of a Regional Board, Planning Authority or 1[Development Authority, constituted under sub-section (2) of section 113], the minutes of the proceedings of which have been duly signed as prescribed shall be taken to have been duly convened and to be free from all defects and irregularity.