Answer:
(Fatwa: 1773/1669=D/1429)
If you are right that the sister apostatized and changed her name after eloping with a Hindu and married him then she is out of folk of Islam. She will not deserve any share in the property of her father.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
