Father's will removed by mother for daughter.

My father died in Feb 2004 , he was against giving any share in property to daughter that's why he allowed me to construct a house in 1999 at my own cost thereby getting rentals , after his death my mother says that he didn't left any will and both mother and daughter took all his savings 15 Lacs and shares ( no clue ) and want to take share in the property also , ( Foul play by mother as she was not agreed ),after this I went ahead and Khata Electricity and water transferred in my name in Year 2004 itself till date no body claimed against this 10 years is over, now I want to sell the property they are not ready to come and sign even giving them there share what should i do?