Should a certificate of public convenience and necessity be issued by the Mississippi Agricultural and Industrial Board, the boards of supervisors of each of the counties affected shall call an election in each of the supervisors districts affected in the manner and method for calling, conducting and holding elections provided in Section 57-1-25, and should two-thirds of the qualified electors residing in each of the supervisors districts affected voting in the election, vote in favor of the enterprise, the supervisors districts included in the petition for public convenience and necessity shall be deemed a municipality within the meaning of Sections 57-1-1 through 57-1-51, and shall have all rights, powers and authority granted to municipalities as defined in said sections and by said sections.