Indiana Code Title 22. Labor and Safety § 22-9.5-6-9

(1) must consist of a short and plain statement of the facts on which the commission has found reasonable cause to believe that a discriminatory housing practice has occurred or is about to occur;

(2) must be based on the final investigative report;  and

(3) need not be limited to the facts or grounds alleged in the complaint.

(1) Each respondent, together with a notice of the opportunity for a hearing provided by section 14 of this chapter.

(2) Each aggrieved person on whose behalf the complaint was filed.