Which of the following is not an heir of Class II of the Hindu Succession Act, 1956?

The Explanation to the Schedule of the Hindu Succession Act, 1956 states that references to a brother or sister do not include a brother or sister by uterine blood, so they are not Class II heirs. Father (entry I), father's father and father's mother (entry V), and mother's father and mother's mother (entry VIII) are all Class II heirs.

Current law: For covered Uttarakhand estates, UCC Sections 49–52 and Schedule 2 provide a different common heir-class scheme. In particular, parents are included among Class 1 heirs, so the old HSA placement of father in Class II cannot be carried over unchanged to that scheme. Coverage includes defined Uttarakhand residents, including residents outside the State, and excludes Scheduled Tribes and groups with Part XXI-protected customary rights.