Section 61(2)(b) in The Water (Prevention And Control Of Pollution) Act, 1974
(b)all the powers, functions and duties which may, by or under this Act, be exercised, performed or discharged by the Central Board or such Joint Board shall, until the Central Board or the Joint Board, as the case may be, is reconstituted under sub-section (3) be exercised, performed or discharged by such person or persons as to Central Government may direct;