Rule 19 [ Service by post

Every notice or other document, the service of which is permitted by ordinary first class post (that is first class post which has been pre-paid or in respect of which prepayment is not required) under these Orders, or the service of which by post or by registered post is directed by [^f1 the judge or district judge as the case may be], shall be deemed sufficiently given and served if it is transmitted by ordinary first class post or by registered letter. Such service may be proved by affidavit.]