Daughter in law harassing and torturing my mom (Senior Citizen)

I applied for divorce and paying the monthly maintenance. my wife forcibly trespassed my mom's house by breaking the windows, cutting the iron grill with gas cutter, and entered inside the house by creating terror in early morning hours. We have filed an FIR in local police station. My mom stays alone in own flat which is her self-acquired property. My wife started harassing my mom by filthy language and beating her inside the house. My mom is staying outside of the flat 24/7 and sleeping on the floor as my wife is not allowing her to enter inside the house. The main intention of my wife is to capture the entire property and she is also managing the local police and we are unable to get the help from them as well. As of now, there is no judgement from the court on my wife’s stay in that flat. Recently, supreme court has passed judgement in Satish Chandra Ahuja’s case that daughter in law can stay in in law’s house. Is this statement applicable in the above said case as well? We are unable to tolerate the harassment and torture made by my wife. We are desperately looking for some relief, would you please let me know if there is any way to get my mom out of this critical situation. Is there a way to get my wife evicted from that flat? Can my mom file DVC against my wife? Or can we go to high court to get the permanent injection order? Or can we get the permission to install CCTV inside the house and to permit the servant inside of the house to take care of mom? or is there any special acts for the senior citizen to relief. Please share your opinion, your valuable suggestions are greatly appreciated and may get some relief to mom.