Ind. Code § 5-1-4-20
Any holder of bonds issued under the provisions of this chapter or any of the coupons appertaining thereto, and the trustee under any trust agreement, except to the extent the rights herein given may be restricted by the authorizing resolution or trust agreement, may, either at law or in equity, by suit, action, mandamus or other proceedings, protect and enforce any and all rights under the laws of the state or granted hereunder or under such trust agreement, or the resolution authorizing the issuance of such bonds, and may enforce and compel the performance of all duties required by this chapter or by such trust agreement or resolution to be performed by an Authority or by any officer, employee or agent thereof, including the fixing, charging and collecting of rates, rents, fees and charges herein authorized and required by the provisions of such resolution or trust agreement to be fixed, established and collected.
Such rights include the right to compel the performance of all duties of an Authority required by this chapter or the bond resolution or trust agreement; to enjoin unlawful activities; and in the event of default with respect to the payment of any principal of, premium, if any, and interest on any bond or in the performance of any convenant or agreement on the part of an Authority in the bond resolution, to apply to a court having jurisdiction of the cause to appoint a receiver to administer and operate the project, the revenues of which are pledged to the payment of principal of, premium, if any, and interest on such bonds, (with full power to pay and to provide for payment of, principal of, premium, if any, and interest on such bonds), and with such powers, subject to the direction of the court, as are permitted by law and are accorded receivers in general equity cases, excluding any power to pledge additional revenues of an Authority to the payment of such principal, premium and interest; and to foreclose the mortgage on the project in the same manner as for real estate of private corporations.
IC 5-1-4-20