needed help on what best can be done - divorce help.

Hi, My friend (sruthi) hindu was forced to marriage with caste feeling and got married its been an year for their marriage. She was in a relation with my other friend.Even after marriage she is in relation with my friend. Her husband is forcing her to be with him against her will and her parents are also blackmailing her to be with her husband. She is getting suicidal thoughts and she is sharing this to my friend. Her husband is spying her on phone, internet. somethimes they even house arrested her. She is asking for divorce from him but he is not giving it. her husband took marriage certificate with a wrong date. she was forced to sign a notice that she will not give divorce even if her husband asks her to. She want to live with my friend. what can be done.