Mental harrassment and false allegations by sister in laws

Sir, my sister in laws are filing false sexual harrassment complaints againt everyone who come to our house to help us.i have three brothers all them are married and are against us all i live with my father and mothe we all are in same house but on seperate floors.firstly my sister in law filed a sexual harrassment and dowry case against my father then and now she is again and again complaining against my brother in law that he is sexually harrassing her and police is not doing any investigations they are not doing there duties faithfully.also she has filed complaint of abusion on someone who visit to our house to help.Despite this all her husband and she has been directed by senior citizen court to vacant the house then they challenged it in high court from there also judge asked them to vacant the house and order is reserved and also directed sho to ensure that they are not possessing any harm to senior citizens(my mother and father) but still they are doing false complaints and mentally torture to us.what should we do against there false allegations on our dear ones?