I am a married woman with a 6 years daughter. My father is a businessman. My step mother is acquerin

I am a married woman with a 6 years daughter. My father is a businessman. My step mother is acquering property from my father's property and naming it on her and my 14 yrs step sister's name. I have 2 sister,1 brother and 1 step sister. My father initially wanted to buy a 1 bhk flat for me. As my husband was not agreed for marriage, due to house problem. But my parents promised him to buy a house for me. As my parents was not found any suitable groom for me. So they promised my husband to fulfil his need of house. But now I had been married for 6 years, till they had done any needful. Till now we are managing on rent. Now they are going against there promised. Here my parents are doing fraud to me. Iniatially my father was in my favour,but suddenly my step mother had changed his mind. I had never done any wrong to my parents. Is there any solution to this big fraud done by parents. Is there any law for me to get share in my father's property?