Prohibitory order for contravening foreign contribution rules may be issued and served by prescribed personal, postal or affixation methods. The Central Government may issue a prohibitory order regarding any article, currency or securities received in contravention of the Act. Service must be effected by personal delivery to the person or authorised agent; by registered post with acknowledgement due or speed post to the person's last known residence, business place, workplace or, for organisations, the last known office; or, if those methods fail, by affixing the order on a conspicuous part of the premises with a written report witnessed by at least two persons.