15. (1) During the period of possession no person shall without the permission of the authorised person use or occupy the tank or use the water thereof except for drinking and other domestic purposes or catch fish in the tank or take fruits from trees on, or other produce from, the banks of the tank, except such portions of the banks as are homestead, garden or orchard lands. (2) During the period any land, of which possession is taken under section 6A or retaken under sub-section (3) of section 9B, remains in the possession of an authorised person, no person shall without the permission of the authorised person use or occupy such land or take fruits from trees on, or other produce from, such land.