I want divorce from my wife

I married 8 years back. I was happy with my wife (She is also Advocate) almost one year but last 7 years my wife used to fight with me as we have very less understanding between us. I patiently lead the family. Gradually my wife have started doubting & blaming on me about my extra-marital affairs and my parents. she always tried to humiliated me, my parents and our reputation in society. after 6 years we got male baby (now he is 3 years old)and my wife went to her parent's home; from there also she used to do doubts and all the things. Than i have decided to not to bring her back into my life as we are never going to live a happy life together. So from last 3 years she is living at her parents home. During this time she has sent different applications by a lawyer at police station against me and she put false cases against me but the cases are not stand in the station andLuckily we managed it. After than, when i asked for divorce than she refused for the same and i asked her to come to my home but she is not ready to come and she is ready to come where i am working there but my parents are aged nobody are there to take care about them i told her be with them weekly once or twice i will vist but She didn't agree. She said she doesn't want alimony or doesn't want to file a case to court; but she will also not give divorce to me ever at any condition and said she will not let me go ahead in my life as her revenge. Now i want to move ahead in my life so, How can I get DIVORCE from my wife?? please please suggest me...