Ind. Code § 36-9-31-10
(e) In order that the payment of the revenue bonds and the interest on them be adequately secured, the consolidated city and its officers, agents, and employees shall provide for such covenants and do such other acts and things that may be necessary, convenient, or desirable in order to secure the revenue bonds or that may tend to make the revenue bonds more marketable.
As added by Acts 1982, P.L.77, SEC.27.