 extracts from the citizenship act, 1955 (57 or 1955)4 (1) a person born outside india on or after the 26th j anuary, 1950, shall be a citizen of india by descent if his father is a citizen of india at citizenship by descent, the time of his birth: provided that if the father of such a person was a citizen of india by descent only, that person shall not be a citizen of india by virtue of this section unless— ! (a) his birth is registered at an indian consulate within one year of its occurrence or the commencement of this act, whichever is later, or, with the permission of the central government, after the expiry of the said period; or (b) his father is, at the time of his birth, in service under a government in india    %  (3) for the purposes of the proviso to sub-section (1), any male person born outside undivided india who was, or was deemed to be, a citizen of india at the commencement of the constitution shall be deemed to be a citizen of india by descent only renuncia tion of citizenship (2) where a male person ceases to be a citizen of india under subsection (1), every minor child of that person shall thereupon cease to be a citizen of india: provided that any such child may, within one year after attaining full age, make a declaration that he wishes to resume indian citizenship and shall thereupon again become a citizen of india 