Ind. Code § 31-19-4.5-2
Except as provided in IC 31-19-2.5-4 , if a petition for adoption alleges that consent to adoption is not required under IC 31-19-9-8 , notice of the adoption must be given to the person from whom consent is allegedly not required under IC 31-19-9-8 . Notice shall be given:
(2) in the same manner as a summons is served by publication under Rule 4.13 of the Indiana Rules of Trial Procedure if the name or address of the person is not known;
to a petitioner for adoption.
As added by P.L.61-2003, SEC.10. Amended by P.L.146-2007, SEC.8.