Wife not coming back from parents house

In 2006 my wife and me ran away and made court marriage after that we made nikkah. And her parents don't allow her to talk them. In 2007 my wife given birth to a baby boy next day suddenly her parents came to see him, and we started to talk each-other. In 2013 febuary her parents forced me to go saudi arab for job and i went to saudi my wife was living with her parents. Everything was good suddenly In 2016 dec i got cancer in my right cheek because of chemical infaction. When i came to india for treatment within one week her parents said we don't want to send her back to your house. But my wife came with me after my cancer operation my wife called from hospital to my house and she said i don't want to stay with me. But but she came again. After that her parents many time came to my house and abused me. My wife also supported them. In april 2017 in my son's school vacation she went to her parents house by saying she is coming back within 15 day after 20 days i called her to say come back to matrimonial house. She replied she don't want to come back. And my wife is making false stories like i am beating her, Actually my wife don't want to stay with me because of my cancer operation. But now i am cancer free. Her parents washed her brain and forcing her to don't go her matrimonial house. Please give me advice what to do I love my wife too much and i don't want to loose her.