Provided that the terms and conditions of the members nominated under clause (d) of sub-section (2) shall be such as may be prescribed.

Vacancies, etc., not to invalidate proceedings of the Planning Authority or of the Committee 5. No act or proceeding of the Planning Authority shall be invalid merely by reason of:-

1. (a) the existence of any vacancy in, or any defect in the constitution of, the Planning Authority.
2. (b) any irregularity in the procedure of the Planning Authority not affecting the merits of the case.