Mental ladki se shadi

The marriage of my son was scheduled on 20 Feb 17 the father of daughter has hide all facts about her centrally disorder, she was stay at my residence after marriage only 04 days, after 7 month she again come at my home then her attitude and behaviour is not normally then ask her parents about her position he replied Dr. Sanjeev Singh ko dikhaiye. Dr. Sanjeev Singh suddenly said she is taking treatment here more than three years. So she is not normally, nor her behaviour for her husband, my daughters is normal. She does not sleeps at night n awake in 2.00 pm or 3 pm daily often she quarrel. Mostly her higher n AUR APNA SAR DEEWAL PAR MAARTI H. we are afraid for this act n I asked legal advise what I can do? The advocate advised me to send him to her parents, if she take any wrong step like a hanging or some other step in mentality all of my family will suffer so she is now at her parents home. On 12 Nov she complained in 1090 Lucknow police for abusing and misbehave by my family . What is the right step to be taken by me? She also taken all ornaments with him costing about Rs 7 lakh.