4. A person shall not be qualified to be appointed under this Part of this Schedule to fill a seat in either Chamber of the Federal Legislature unless he—
(i) is a British subject or the Ruler or a subject of an Indian State which has acceded to the Federation; and
(ii) is, in the case of a seat in the Council of State, not less than thirty years of age and, in the case of a seat in the Federal Assembly, not less than twenty-five years of age:
Provided that—
(a) the Governor-General may in his discretion declare as respects any State, the Ruler of which at the date of the establishment of the Federation was by reason of his minority not exercising ruling powers, that sub-paragraph (i) of this paragraph shall not apply to any named subject, or to subjects generally, of that State until that State comes under the rule of a Ruler who is of an age to exercise ruling powers; and
(b) sub-paragraph (ii) of this paragraph shall not apply to a Ruler who is exercising ruling powers.