''The headman of a ward or elder of a block so appointed shall hold office for a period of five years, but shall be eligible for re-election. Notwithstanding anything contained in any other law, the Deputy Commissioner may, in the case of a headman of a ward or elder of a block appointed in his jurisdiction prior to the commencement of the Towns (Amendment) Act, 1947, by three months’ notice in writing to the headman or elder concerned, terminate the appointment of such headman or elder with effect from the date to be mentioned in the notice...''