Transfer case Azamgarh to Delhi

Hy sir my name is Vishakha.Actually I want to ask about my mother case.My mother went for attend gurmel for my Great grand father.We are separate from Grand parent and my father's brother becouse of we are only 3 sister.Becouse of that they make us out of will and from property.After than we bought some land for living and farming.One day My father's brother and his wife and son, daughter,Uncle and his sons and my grandfather they all came to my house at early morning and beat my parents till they fall unconscious.They beat them brutally.In which she(my mother) she had head injury and 1middle finger of left hand.After thehospital they make wardboy for giving poison for my mother.after all these happened the police didnot take any action.we file a case about all these.but there were also no response. every hearing they make excuse and extend date by giving money.And village Pardhan also favour them.When ever Police summon them Pardhan make them stop for doing this.So what should I do?