Divorce

I got married my daughter on 4th December 2016.This was an arranged marriage. She lived with her husband at Banglore for 3 months from Feb 17 to May 17 and some misunderstanding develoved between them. HUSBAND dropped her with his parents and she lived approx a fortnight with them comfortably. But after a fortnight when her husband returned to his parents, again some dispute arises and he sent my daughter to our home alone in June 2017. In August we again visited to her in laws and dropped her with them. Approx after a fortnight as reported by her in laws there was some change in our daughter's behaviour and it was uncomfortable to her old aged in laws and they sent to her to us by air from dehradun to Lucknow on 1st September 2017. We consulted a psychiatric on 15th September 2017 and she is taking medicine sizodone l s and under regular consultation of doctor. We have disclosed this facts to her in laws and husband. She is well now and worked in a private school for last 6 months in a leave vacancy. Presently she is pursuing a short computer training. She is M.Tech from Biotechnology and now her behaviour is normal. Her husband and in laws are blaming that she is suffering from schizophrenia before marriage and we cheated them. But we never went to any doctor before her marriage. They are not responding to our phone calls. Can they file a divorce case