The natural, adoptive, adoptee can approach court.
Engagage a very able LOCAL counsel with successful track record and understand the startegy and inputs of your counsel.
THE HINDU ADOPTIONS AND MAINTENANCE ACT, 1956
15. Valid adoption not to be cancelled- No adoption which had been validly made can be cancelled by the adoptive father or mother or any other person, nor can the adopted child renounce his or her status as such and return to the family of his or her birth.
There are many threads on adoption at LCI e.g;
“Revocation of adoption deed”
Delhi High Court
Sahib Singh vs Arvinder Kaur & Ors. on 24 January, 2013
Author: Sanjay Kishan Kaul