False dowry case on me and my husband

Dear sir/madam l am the elder daughter in my house and l have younger brother, younger sister and last one is abnormal sister .me and my sister we both are got married and we are all leaving surrounded areas means nearby my mother area ... after my brother got married in the year2016 and they are leaving with my parents in own house after marriage of 5 months she was pregnant and started problems to my parents and my abnormal sister like ,not giving food ,she used to cook less quantity of food at home , if my parents asked means ,she used to tell her parents and they used to come and fight with my parents and that they should admit in old-age and my sister should admit in to abnormal hostel , in that way they use to quarrel every day at home and so she done suicide attempt and then my brother and his wife left own house in 2018 and went to rent house that is nearby her mother's house then my mother, father and my abnormal sister are leaving at home then my mother became sick and she used to admit in hospital and no body were taking care of them ,so in2022 mother got some health issues because of nobody were looking after my parents they were aged , and they were mentally upset and they use to tell us they were not interested to leave and they used die so thats why I use entered in my mother's house for rent in ground floor in2022.but my parents and my abnormal sister were (3 members) were staying in the house now I am looking after them and lam working woman and husband also working I have two children they were studying . now again brother and his wife were got some misunderstanding and my brother wants to devours so no she complain on me that I asked her 10 lakhs dowry for her and l sended her from home .. please give me some advice...