My father acquired a property which was self aquired by his mother. My father has two properties. My father passed away last year. A flat and second is acquired property land (1 acre) from his mother. My father wrote a will in 2003 wherein after his death the flat would be transferred to me while the land would be divided into 2 partitions.(half for my sister and half for me). I have just obtained the copy of his will when I was going through all the documents. In 2010 I find that the land is settled in the name of my sister and registered while I was always given an understanding that the land will be equally divided between both of us.. Do I have a claim on my Grand Mothers property which was acquired by my father. I am not sure if it becomes ancestral. Can I challenge the settlement deed on the basis of the will. Do I still get my share of the property