I am going through a legal seperation with my wife and she is traumatizing our 6 year old daughter?

I have been married to my wife for 10 years now. This was an arranged marriage.There was absolutely no trust worthy communication between us.We went through Family Counselling and was recommended to be seen by a Psychiatrist.She is diagnosed suffering from Paranoid Personality disorder. My wife co-operated with the treatment for the first 13 sittings and refused after discussing with her folks. She stopped taking the medicines and the with drawl effects seems very cruel & Vindictive. I filed for divorce in Chennai. In fact, i took my psychiatric opinion before filing for divorce. They felt, it would be very difficult for both of us to get along especially after she is aware of the sickness. We have a 6 years old daughter. She loves me as much she loves her mother. My wife has traumatized our daughter and will not allow me to see her at all. Please advice me as my little girl is scared of anyone & looking for me to come back home. Anyone with similar experience, please share it. Thanks.