The Hindu Succession Act, 1956
26. Convert’s descendants disqualified.-
Where, before or after the commencement of this Act, a Hindu has ceased or ceases to be a Hindu by conversion to another religion, children born to him or her after such conversion and their descendants shall be disqualified from inheriting the property of their Hindu relatives, unless such children or descendants are Hindus at the time when the succession opens.
The Hindu Succession Act, 1956