Indiana Code Title 3. Elections § 3-13-5-9

Sec. 9. If a house of the general assembly determines that a person should not be seated as a member of that house because that person was ineligible to hold the seat for which a certificate of election has been issued by the secretary of state, the seat shall be filled under this chapter.  A person selected to fill a vacant seat under this section must meet all requirements set forth in Article 4, Section 7 of the Constitution of the State of Indiana as of the date of the general election for which the ineligible person who was not seated received a certificate of election.