Legal advice for divorce

I am 35 year mechanical engineer by profession.Six year ago I have married with shruti on 2-feb-2012.After marriage my wife started living with me during my job.After two year of marriage a baby girl born to my wife.But after birth of my child my wife and her parents start abusing to me and creat finacial pressure on me.They also mentaly tortured me me.This lead to leave my job and got dipressed.I was diagnosed with biapolar disorder. Now my wife and her parents has summoned me under the trial court for domestic voilence.She is staying at her parents home from last four years.My mental and financial condition is not good and I am under medical treatment. My child is under her custody and she is not ready to live with me at my parents home.What should legal act steps to be under these circumstances and how easily I can get divorced easily and claim c for child custody under me.My wife is also dipression patient. Pls. advice best possible solution that can be. my email;[deleted];