Land inherited from biological or adopted mother is not considered ancestral property
As a daughter your right to claim a share in your father’s self-acquired property would arise if your father were to die intestate. Image Source:

The Private Client team at Cyril Amarchand Mangaldas shares their comments and opinions shared in an article in the  following Q&A which was published by the Mint Newspaper on 7th October, 2020 and the online edition of the same can be found here.

We are two sisters and our father inherited a residential property from his mother through a will. He willed the whole property to my elder sister under pressure. Can my father give the property to one of the two legal heirs, leaving nothing for the other?