The Authority may, —

(a) caution or prohibit insurers, generally or any insurer in particular against entering into any particular transaction or class of transactions, and generally give advice to any insurer;

(b) at any time, if it is satisfied that in the public interest or in the interests of the insurer or for preventing the affairs of the insurer being conducted in a manner detrimental to the interests of the insurer or hi s policy-holders, it is necessary so to do, by order in writing and on such terms and conditions as may be specified therein, —