(b)in the case of an order affecting a person not being a corporation or firm, be served on such person-(i)personally, by delivering or tendering to him the order, or(ii)by post, or(iii)where the person cannot be found, by leaving a copy of the order with some adult male member of his family or by affixing such copy to some conspicuous part of the premises in which he is known to have last resided or carried on business or personally worked for gain,