Indiana Code Title 2. General Assembly § 2-1-9-13

Sec. 13. (a) As used in this section, “redistricting act” refers to any act that enacted IC 2-1-14 or IC 2-1-15, or both of those statutes.

(b) The provisions of a redistricting act are severable as provided in IC 1-1-1-8(b).

(c) If:

is found to be invalid by a court, the invalidity does not affect the remaining portions or applications of the redistricting act, including the remaining districts, that can be given effect without the invalid portions, applications, or districts.

(d) Redistricting is a state legislative function under both the Constitution of the State of Indiana and the Constitution of the United States.  Therefore, if a redistricting act or any portion of a redistricting act is found invalid by a court, the general assembly expresses its preference that any court that finds the invalidity give the general assembly the opportunity to cure the invalidity before the court mandates its own remedial plan.  The opportunity to cure is without prejudice to the right of either house of the general assembly to seek further appeal of any such court action.

(e) The general assembly reserves the right to replace any redistricting plan mandated by a court immediately, if in session or, if not in session, in a special session or the next regular session, whichever comes first.

(f) In any court proceeding challenging a redistricting plan of the general assembly each of the Indiana house of representatives or the Indiana senate may:

The speaker of the house of representatives shall determine the legal position taken by the house of representatives.  The president pro tempore of the senate shall determine the legal position taken by the senate.