My mother is Accused in Domestic Violence case of brother

My Uncle has been married for 10 years.He and his wife had frequent fights and it involved her going to her home and not returning for a couple of months. All this time she had kept her in-laws away (my grandparents) to the point that my grandmother had to stay at someone else's house while she had her bypass surgery in the same city my uncle lives. So practically there was no communication between my aunt and inlaws. Around five years back uncle and aunt had came to our place for a couple of days during which an argument broke out between my mom and aunt during which my mom said to her that it was not wrong "as a man" for my uncle to slap her when she provoked him by abusing my grandparents and family. Other than that there hasn't been any interaction between my mom and aunt. In september of 2018 my uncle and aunt had a fight and she left there home.Elders were trying to set them up again since past 3 months.My aunt was demanding that a flat and land my uncle bought with his earnings be written on her name or she would file a case againsh him of domestic harrasment and dowry harrasment case against him. A week back she had filed an FIR naming my uncle,his parents,his brother and wife for domestic harrasment and my mothers name for provoking her husband to ask for dowry and making him beat her. My father had recently had a brain surgery and requires my mother to be constantly stay with him.We live in a far away city/dfferent state and my mom can't travel to the place where case is filed. What can be done on our side so that my mom doesn't get into more problems. Until now no one from police station has contacted us. Should we apply for a bail? Would it require my mother to be present for proceedings?What should we say if someone calls and asks my mom to come. My grandparents have went for the first interogation and were they told the police officers that my mom can't come. We live in Delhi and the case is in Hyderabad.