Unobstructed heritage devolves by survivorship.
Obstructed heritage (I.e. Apratibandha dara):
Property inherited by a Hindu from a person other than his father, grandfather or great grandfather is obstructed heritage. It is called obstructed because the accrual of the rights to it is obstructed by the existence of the owner.
The owner holds it as his separate and absolute property. The relations of the owner do not take a vested interest in it by birth. They are entitled to it only on the death of the owner. Thus the property which devolves on parents, brothers, uncles, nephews, etc. on the death of the last owner is obstructed heritage.
Obstructed heritage devolves by succession except in the following cases in which it passes by survivorship.
1. Two or more sons, grandsons and great grandsons succeeding as heirs to the separate property of their paternal ancestor take as joint tenants with rights or survivorship.
2. Two or more grandsons by a daughter who are living as members of a joint family succeeding as heirs to their maternal grandfather take as joint tenants with rights of survivorship.
3. Two or more widows succeeding as heirs to their husband take as joint tenants with survivorship rights.
4. Two or more daughters succeeding as heirs to their father take as joint, tenants. But in the Bombay State, they take absolute estate in severalty.
The Mitakshara Law recognizes the distinction between obstructed and unobstructed heritage, but under Dayabhaga Law. Every kind of heritage is obstructed and it does not recognize any such distinction because according to Bengal School no person at all acquires any interest by birth in the property of another and the rule of survivorship does not apply to this school.
Example of obstructed heritage:
A inherits certain property from his brother. A has a son B. The property is obstructed in the life time of A. B does not take any interest in it during the life time of A. After A’s death B will take it as A’s heir by succession. The existence of A is an obstruction to the accrual of any right in the property to B.