Section 12 of the Hindu Adoptions and Maintenance Act, 1956 deals with:

Section 12 of the Hindu Adoptions and Maintenance Act, 1956 deals with "Effects of adoption": the child is deemed the child of the adoptive father or mother and ties with the birth family are replaced by ties with the adoptive family. The provisos preserve birth-family marriage restrictions and property already vested in the child, and prevent adoption from divesting another person of an estate already vested.