Divorce

Hi I got married in Jan 2015. Ours is a intercast love marriage but both the families knew that we love each other. I'm a Brahmin & he's Buddhist. Noone had issues regarding this till my marriage. I was doing my graduation. In 2014 my husbands brother ran away and married Maharashtrian but other caste girl. Bcoz of their marriage and my bad financial family conditions they forced me to get married. I got married in the middle of my graduation & after that I came to mumbai for MA as prerequested by my mother and me before marriage. But now after coming to Mumbai I go to my hometown almost weekly or once in a fortnight. Whenever I am there They taunt me for being Bhaiyaa (as they call bhayte ) , for being Brahmin. Doubt my character/Insult me in front of kamvalis relatives driver neighbors everyone. Have discussed my period / sex information. put restrictions on everything clothing, believes eating, my language watching TV programmes. They always treat me and brothers wife differently. More favours & no complaints are made against her just because she's Maharashtrian. They are very proud of their richness. My father in law is govt. Officer and they have made money out of it. They have also used my name for their IT jugaads. Not only my in laws but my husband is also castist til marriage he didn't showed this side. Plz help me out what to do and how to do. I am a single child and my father doesn't stay with my mother so she is also all alone my in laws don't even let me go there/ stay. I want to study further but I am financially backward and also have to look after my mom. Please get me out of these. I am totally frustrated with mine and my families insult.