General Clauses Act, 1897
14. Powers conferred to be exercisable from time to time
(1) Where, by any 12[Central Act] or Regulation made after the commencement of this Act, any power is conferred, 24[* * *], then 20[unless a different intention appears] that power may be exercised from time to time as occasion requires.
(2) This section applies also to all 12[Central Acts] and Regulations made on or after the fourteenth day of January, 1887.