A child of one Hindu parent is governed by the Hindu Succession Act, 1956 if:

Clause (b) of the Explanation to s. 2 of the Hindu Succession Act, 1956 covers a child one of whose parents is a Hindu if the child "is brought up as a member of the tribe, community, group or family to which such parent belongs or belonged". The test is upbringing, not the child's own election, the other parent's consent or residence.