Please help me out

Hello Sir, I was in a relationship with a girl from last 7 years, and we are trying to convince our parents from last 3 years, my parents were agree but girl parents was not, her parents infact break their relationship with the girl. In march we decided to do marriage secretly and trying to convince her parents as we're doing. And we do it, only my parents know about this marriage. After marriage suddenly all this got changed. Her parents got to know about our marriage from any source and they came and asked us about marriage, we tell them truth and they will leave us and said you both are not live with us anymore, you both are died for us. After 15 days girl left my home and she shifted to her father's home and from that day she is not in contact with me just i got a message from her side that she want a divorce from me and her father contact me and said you all have done very bad with my daughter and imposing lots of alligations on me. My father said him that nothing is done by us if you really think that we do something than we meet and solve this problem but they all not want to face us now. In fact they are continually lying that she is in hospital and lots of things. I got to know from our source that she is fine and she is at her home and she changed her contact number and even she deleted her all social media profile. I want to know now what i can do to save my marriage.