First of all..., Indiana Requires a Permit to Carry a Handgun beyond Your: 1 Home, 2 Land, or 3 Premises/Property.
Indiana does NOT Differentiate between Open Carry and Concealed Carry, unlike Virginia.
Therefore, Open Carry and Concealed Carry in Indiana is LEGAL so as long as You have a Permit.
You have a Permit from Virginia, and Indiana Reconizes ALL Permits Issued by EVERY State, except Illinios (as Illinios does NOT Issue Permits).
Secondly..., 'Schools' are NOT Defined under that Chapter of Article 47 of Title 35 of The Indiana Code.
Since The Term 'School' is not Defined, I would much rather You be Safe-than-Sorry, and Assume Colleges and Universities are just as Prohibited as Elementary and Secondary Schools are, as it is a Class D Felony to Violate This Indiana Law.
***Maybe Indiana will Define The Term 'School', for The Purposes of Article 47 of Title 35 of Indiana Code next Legislative Session.***