How to proceed further if the girl is not returning from her parents home after marriage.

Hi, I have been married since 11 Oct 2018. After marriage girl is with me only one month. After my marriage I have noticed she was in contact with the guy whom she has proposed before marriage. However I had never taken this as a problem. I just changed her sim and advised her not to contact him again. One day her dad came and took her to native (Tirupati) on 09/02/2019 telling one of her(my wife's) cousin's wedding. Her dad spoke to me nicely and took her to native telling that she will return after a week. Now the girl is not returning. I had check her call history she is still in contact with her boy friend. My parents went to speak with her parents, they are not ready to send girl... She used to stay her parents place whenever she goes to native. I don't see she has any interest on me. But they are not clearly telling if she want divorce too. We tried many ways to get the girl back however they are not responding. Now I too lose my patience. I too don't want to live with that kind of person who is not interested in me. There were no major fights between us. Please advise how long it will take me get divorce. How should I proceed with this if girl is not returning from her parents place and not responding to my emails and calls