Sec. 3. (a) A person who consents to an adoption may not withdraw the consent to adoption after the entry of the adoption decree under IC 31-19-10-4.
(b) A person who is served with notice of an adoption under IC 31-19-4 may not:
(1) contest the adoption; or
(2) establish paternity;
more than fifteen (15) days after the date of service of notice of the adoption.
(c) A person who receives actual notice of an adoption under IC 31-19-3 may not:
(1) contest the adoption; or
(2) establish paternity;
more than fifteen (15) days after the date of receiving actual notice of the adoption.
(d) A person who is prohibited from taking action by subsection (a), (b), or (c) may not challenge an adoption decree.