law: Water (Prevention and Control of Pollution) Act, 1974
  10. Temporary Association of Persons with Board for Particular Purposes.
  
  (1) A Board may associate with itself in such
  
  manner, and for such purposes, as may be prescribed any person whose assistance
  
  or advice it may desire to obtain in performing any of its functions under this
  
  Act.
  (2) A person associated with the Board under
  
  sub-section (1) for any purpose shall have a right to take part in the
  
  discussions of the Board 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.
  (3) A person associated with the Board under
  
  sub-section (1) for any purpose shall be paid such fees and allowances, for
  
  attending its meetings and for attending to any other work of the Board, as may
  
  be prescribed.