Section 13H(1) in The U.P. Municipalities Act, 1916
(1)Subject to the provisions of sub-section (2) of Section 13-I, when the seat of a member, elected to a [Municipality] [Substituted by U.P. Act No. 12 of 1994.] becomes vacant or is declared vacant or his election is declared void, [the State Election Commission shall in consultation with the State Government] [Substituted by U.P. Act No. 12 of 1994.] by a notification in the Official Gazette, call upon the ward concerned to elect a person for the purpose of filling the vacancy caused before such date as may be specified in the notification and the provisions of this Act and of the Rules and Orders made thereunder, shall apply, as far as may be, in relation to the election of member to fill such vacancy.