Domestic violence creating by elder brother's wife for property

Since my elder brother got married, his wife has been abusing my father, mother, from which I have not been spared. I got married in 2015, and my wife is being harassed and abused in the same way. My elder brother has no work and his wife has a high expectation/ambition to live a life. I am a central government employee as a constable in Sashastra Seema Bal in CAPF. I have made a house by investing my own money before my marriage. The land where is building made is also my name. The land has been donated to me by my maternal grandmother as we are living in my maternal house. After my marriage, my wife was staying alone with my family and they have been harassed my wife. Now a days my parents take side to my elder brother as he has no work. Now as I am not in house, my wife is alone, they all together have commit atrocities on my wife for my house. In Feb’2021, an extreme situation was created in which my wife was about to commit suicide as she could not bear the bad words of my brother's wife. Now a days we (Me & My wife) are not able to residing to this house as they all together have abusing every talks. I am not able to doing anything against them. They told me we neither leave this house nor getting you any part of house or anything which we have.