Indian origin Hindu couple working in Dubai

Sir/Madam, My daughter MBBS,MD Paed married to a Doctor MBBS,MD Anaesthesia on 29.01.2015 according to Hindu tradition in Belgaum. At that time son in law was working in Hyderabad pvt hospital. After about six months both shifted to Dubai. He is working in Govt hospital and my daughter in a pvt hospital. He wants my daughter should do all domestic work including cleaning.All salary should be given to him. My daughter has given all salary to him for almost one year. When I asked some money as loan in May 2016 he refused flately. How ever my daughter managed to send money to me 15 Lakhs from her salary. Then he started to harassing her. He says he had married for money and forced to vacate from house. She stayed in a hotel for 3-4 days then shifted to a house on rent during October 2016. He says clearly my daughter has no rights , she should do whatever he says and treatns shariat law. Once he has gone to such extent of catching her hair and neck. He acted like phyco, next day behave as if nothing has happened. Earlier he used to say he will return all money taken by him, marriage expenditure,gold given to him. Now refuses and says do whatever we want. For Diverce he says not ready for mutual.Simply drag it. His parents particularly his mother seems to be main reasons. She supports him. His ex friend photos with him and letter written by him got my daughter in Sept 2017 was referred to his mother.Her response was it is very old and every one know it. It seems purposely he made to be seen by my daughter. Their main aim seems that my daughter have no rights.Or they might have decided to Diverce her. No my daughter decided to go for divorce as early as possible. So kindly let's know as to we have to go. With Thanks and Regards Somashekhar