For the purpose of the Act, thebusiness of an insurer shall be deemed to be transacted-
(c) in India, if the insurance business, wherever effected,relates to any property situate in India or to any vessel or aircraftregistered in India;
(d) in India or the States, according as the premiums in respectof those transactions are ordinarily paid in India or the States, asthe case may be:
Provided that if any question arises whether any premiums areordinarily paid inside or outside the States of India, the Controllershall decide the question and his decision shall be final.