law: Water (Prevention and Control of Pollution) Act, 1974
  15. Special Provision Relating to giving of Directions.
  
  Notwithstanding anything contained in this Act
  
  where any Joint Board is constituted under section 13, -
  (a) the Government of the State for which the
  
  Joint Board is constituted shall be competent to give any direction under this
  
  Act only in cases where such direction relates to a matter within the exclusive
  
  territorial jurisdiction of the State;
  (b) the Central Government alone shall be
  
  competent to give any direction under this Act where such direction relates to
  
  a matter within the territorial jurisdiction of two or more States or
  
  pertaining to a Union territory.