My wife left house n file NC against me n my mom

Hi, my wife left the house n filed NC against me n my mom. She complained tht me n my mom is hitting her n locking her inside the house and also using abusive language n giving her mental stress. She has recorded the abusive language said to her by my mom but she has not recorded the abusive language used by her against my mom n sister. My wife started using abusive language thn my mother followed. Her brother is PSI n hez using the govt. Machinery against my family. This is the 2nd time she filed NC. I was not aware of the 1st NC filed. So whn I came to know about the same I questioned the officer incharge but he started threatening saying he will lock me if I ask him more questions. My wife whn left the house tht day argument started because she was holding my mom n sister responsible for not having us child. She said both of thm are doing black magic. 2 years has been completed for our marriage this December. During our 2 years of marriage I was away for work for 1 year. She left the house on 8 November. I feel shez pregnent now. Even if shez not pregnant I want her back in my life. I loved her from the bottom of my heart. But shez not ready to talk nor her family. Please advise how to bring her back home.