Indiana Code Title 32. Property § 32-31-8.5-2

(1) Complaining to a governmental entity responsible for enforcing an applicable building or housing code about a violation with respect to the rental premises that materially affects health or safety.

(2) Complaining to a landlord in writing concerning the landlord's violation of IC 32-31-5-6 or IC 32-31-8-5.

(3) Bringing an action against the landlord under IC 32-31-6 or IC 32-31-8.

(4) Organizing or becoming a member of a tenant's organization.

(5) Testifying in a court proceeding or an administrative hearing against the landlord.