Section 21I(2) in The Bihar Co-operative Societies Rules, 1959
(2)The concerned society shall submit under its seal and certificate a voter list as on the last day of preceding Co-operative year in triplicate in Form XXIII to the Election Officer on or before 30th April;Provided that if the society is an affiliating society the voters list of the society shall be submitted under its seal and certificate as on the last day of the preceding Co-operative Year in triplicate in Form XXIII ana Form XXIV to the Election Officer on or before 30th April.