Dear Sir,
Your mother can claim share in her ancestral property from her parents side. Even if she born before 1956 as per recent Supreme Court judgment she is entitled for equal share to that of her brother. You may take GPA/POA on her behalf and file a suit for partition. The relevant law is as follows.
http://www.livelaw.in/daughters-equal-rights-ancestral-property-even-born-enactment-hindu-succession-act-holds-supreme-court-read-judgment/
Daughters Have Equal Rights In Ancestral Property, Even If They Were Born Before Enactment Of Hindu Succession Act, Holds Supreme Court [Read Judgment]...
The Supreme Court has held that daughters who were born before the enactment of Hindu Succession Act 1956 are entitled to equal shares as son in ancestral property. The ruling was rendered in an appeal filed by daughters challenging a decree in a partition suit, which excluded them from partition. The partition suit was filed by the grandson of the deceased propositus of a joint family in 2002. The Trial Court held that daughters were not entitled to share in property, as they were born bef...
The partition suit was filed by the grandson of the deceased propositus of a joint family in 2002. The Trial Court held that daughters were not entitled to share in property, as they were born before 1956, the year of enactment of Hindu Succession Ac...