law: 4. Advisory Committees .
  (1) The Central Government shall appoint a Central Advisory Committee and shall consult it in regard to
  (a) the erection or position of lighthouses or of any works appertaining thereto;
  (b) additions to, or the alteration or removal of, lighthouses;
  (c) the variation of the character of any lighthouse or of the mode of use thereof;
  (d) the cost of any proposals rel ating to lighthouses; or
  (e ) the making or alteration of any rules or rates of dues under this Act .
  (2) The Central Government may, if it thinks fit, appoint an Advisory Committee for any district for the purpose of advising in regard to any of the matters specified in sub-section (1) in so far as the interests of the district are affecte d thereby.
  (3) Advisory Committees shall consist of persons representing interests affected by this Act or having special knowledge of the subject -matter thereof.
  4[(4) No act or proceeding of the Advisory Committee shall be invalidated merely by reason of
  (a) any vacancy in, or any defect in constitution of, the Advisory Committee;
  (b) any defect in appointment of a person acting as a m ember of the Advisory Committee; or
  (c) any irregularity in the procedure of the Advisory Committee not affecting the merits of the case.]