Ind. Const. art. 4, § 29
The members of the General Assembly shall receive for their services a compensation to be fixed by law; but no increase of compensation shall take effect during the session at which such increase may be made.
(History: As Amended November 3, 1970. The schedule adopted with the 1970 amendment to Article 4, Section 9 was stricken out by the November 6, 1984, amendment).