3. (1) When any land held on valid title, which is not resumable under the Chittagong Hill-tracts Regulation, 1900, or the rules made thereunder, is required for any public purpose, the Deputy Commissioner may acquire such land by an order in writing.
(2) When an order is made under sub-section (1), the Deputy Commissioner shall serve a copy of such order on the person or persons interested:
Provided that if the Deputy Commissioner is of the opinion that the service of the copy of such order on each such person will cause delay in taking possession of the land, he may dispense with such service and cause a public notice of such order to be given at convenient places in the locality.
(3) On and from the date of service of a copy of the order or publication of a notice under sub-section (2), the land so acquired shall vest absolutely in the 1[Government] free from all incumbrances and the Deputy Commissioner may take possession of such land by using such force as may be necessary.