Natural guardian of an adopted son under the Hindu Minority and Guardianship Act 1956 is

Under Section 7 of the Hindu Minority and Guardianship Act, 1956, the natural guardianship of a minor adopted son passes on adoption to the "Adoptive father" and after him to the adoptive mother. The child is deemed a member of the adoptive family for all purposes, so the "Original father" loses guardianship.