Fake cruelty case on Husband by his Wife

Hi, My name is Mohit Bakolia, i am asking this question on behalf of my elder brother. He is in very much need of good legal advise. He is married since 2013 and by the February 2018, it will complete 5 years of marriage. His wife does not want to live with the family from the very starting of their marriage. She never tried to get adjusted with our family and there is no affection between her and our family. She threatens my brother of committing suicide. His father-in-law has threaten him to blame him legally by misusing the law. Now her wife has lodged a complaint of domestic violence in police station where she was advised by the police officials to approach the women cell and lodged a case there of dowry and domestic violence. She done the same. Women cell had called my brother for a meeting wherein they listened to both of them and at the end they have given one week time. In the next meeting they are going to make both of them sign an mutual agreement and close the case. His wife is really an insane women and she now can do anything to blame the whole family. My whole family is innocent but we are very worried of what will happen next. Please suggest how he can get rid of his wife? He does not want to live with her anymore but he is afraid of getting blamed and legal proceedings against him. He is unemployed from last 2 years due to meeting with an accident and getting an major surgery of his legs and knees. What if after the agreement in women cell, she return back to our home and do something by which the whole family get in custody of police or any legal action. What can we do for our safety in advance from such supposed action of her? Can he get divorce from her ? Please please suggest.