21. The Authority to obey order of court.
(1) The Authority shall obey the order of a court of competent jurisdiction in relation to registered land.
(2) The Authority may, where it considers it necessary, apply to the court which has made such order either to vary the same or to give directions as to the mode in which it is to be obeyed; and thereupon the court, after such notice, if any, as it may direct, may vary such order in such manner, or make such new order, as it may think fit.