Indiana Code Title 29. Probate § 29-3-6-3

Sec. 3. (a) At any time after the appointment of a guardian or the issuance of a protective order, any person may, in person or by the person's attorney, serve upon the guardian or the guardian's attorney, and file with the clerk of the court where the proceedings are pending, a written request together with a written admission or proof of service stating that the person desires written notice of all hearings and copies of all pleadings or other papers in connection with:

The applicant requesting special notice must include in the written request the applicant's post office address or that of the applicant's attorney.  The court may determine that any person requesting notice under this section has no interest in the proceeding, either generally or with respect to a particular matter, and is not entitled to the notice requested.  Unless the court otherwise directs, upon filing the request, the guardian or the guardian's attorney shall comply with the request.

(b) Failure to comply with a request for notice under this section does not affect the validity of the proceeding.