Ind. Const. art. 4, § 30
No Senator or Representative shall, during the term for which he may have been elected, be eligible to any office, the election to which is vested in the General Assembly; nor shall he be appointed to any civil office of profit, which shall have been created, or the emoluments of which shall have been increased, during such term; but this latter provision shall not be construed to apply to any office elective by the People.