Criminal intimidation and extortion

My widowed old mother was humiliated, harassed and physically abused by my sil. She was compelled under circumstances to issue a legal notice to my brother and sil to leave her legally owned house and move to their house owned by my brother, for ever increasing fights amongst them and she blaming unnecessarily my mother for the imbalance sil created in her own life. After receiving notice my sil forced her to move out of her by falsely accusing her for dowry harassment, domestic violence, etc etc.My brother has filed for divorce on grounds of mental cruelty. His wife has played her gender and victim card to her advantage and has demanded my brother, mother, me and my husband in neighborhood, my paternal and maternal family so much that we find our paternal clan standing with us here against us in court of law. In retaliation she has filed DV case against the for of us, in women's cell against my brother and mother and in the local police station. The later two complaints have closed favourably. She is misusing her naturally born minor children out of wedlock of 11 yrs against their father by taking them to police station and exposing them to courts in covid times. Can I file on behalf of my mother and brother against her for hatching a conspiracy to oust my mother from her legally owned house in evening of her life and to criminally intimidate my brother...