Section 44(2)(b) in The Assam Board of Revenue Regulation I, 1963
(b)by affixing a copy thereof on the notice board of the office of the Board; another copy on the Panchayat or Municipal Office of the village or town in which the addressee is known to have last resided or carried on business or other occupation; and a third copy at some conspicuous part of the house, if any, in which such addressee is known to have last resided or carried on business or other occupation; or