Indiana Code Title 5. State and Local Administration § 5-1.2-8-15

Sec. 15. Any income received from the investment of reserves or sinking funds must be applied in reduction of the rentals or other amounts paid by the nonprofit college or university or nonprofit colleges or universities for whose educational facility project or educational facility projects the reserves or sinking funds were created.  Funds held as reserves or sinking funds when invested must be allocated to a specific educational facility project or educational facility projects of the institution for which the fund was created, and the income from the investment must be used to reduce the bonded indebtedness attributable to the educational facility project or educational facility projects.