Explanation For the purposes of this section (a) the share of a member of a family or of an individual person in the land held by an undivided Hindu family, a Marumakkattayam tarwad, an Aliyasanathana family or a Nambudiri Illom, and (b) the share of a family or of an individual person in the land held by a firm, society or association of individuals (whether incorporated or not), or by a company (other than a non agricultural company), shall be deemed to be the extent of land (i) which, in case such share is held on the date of the commencement of this Act, would have been allotted to such member, person or family had such land been partitioned or divided, as the case may be, on such date; or (ii) which, in case such share is acquired in any manner whatsoever after the date of the commencement of this Act, would be allotted to such member, person or family if a partition or division were to take place on the date of the preparation of the draft statement under sub section (1) of section 10. "(4). . . " It is unnecessary to consider the rest of section 5 for present purposes.