Remedies in case ex girl friend is abused by the current husband

Help me We were in relationship about 4-5 years suddenly came the end days of masters degree. we pass the college and stuck into long distance relationship. Now problem started. her parents start finding groom for her. but she was not interested to marry another guy. so she started rejecting the persons, which their parents find for her. Finally she told all about our relationship to her parents. (we are in same religion(Hindu) but different caste) Her parents didn't talk to her about a month. Then her parents took the final step to her marriage. And she didn't like the groom. Finally she married. and we still in contact by calling, social network. Few days back i mailed her and her husband saw that mail. Now her husband is saying to file a case on me that he is torturing my wife abusing her. Please help me to out of this!