Is forcing someone to convert a crime? What to do?

I m a Hindu guy, who married with a Muslim girl in 2012 as per Hindu marriage act. She was following hes religion and I was mine. We both decided that we never interfere each other in their religious issue. Every thing was going fine. But when she come in touch of her parents she left me. Now we are parents of a 3 and half years old kid. Since Sep 2014 we are living separately but now we both want to live tougher. But now she want that I should convert myself from Hindu to Muslim otherwise she is blackmailing me for Divorce and forcing me to convert myself. I know she is in family pressure.I also wanted to live with her but without convert myself and her too. She is free to free to follow her religion, I only wanted to do that what, she is doing means force fully convert of any person is as per law or is it against the law? What action can I take and what will be the result. If I file a case against her and her parents and proved, what will be will be punishment according to law.