Mental harasment from husband and family even after separation.

Dear Sir, I am working with a leading IT industry. I got married on feb-2015 as per Hindu Marriage act. I started to live with my husband in bangalore. He has a widow sister who got a job in bangalore and started to live with my friends. I made those arrangements for her stay. After marriage my husband started to harass me for silly reasons, sometimes no reasons, he would push me off the house as a punishment. He would abonden me at a lonely place at nights as punishment. He started to punch me on face for not giving his name as nominee in the investment he asked me to make. He had put restrictions all over me. His sister would come every week and use foul language on me and go, for no reasons. In one sense to say, things were taking very different direction altogether. On Jan 31st 2016, where I had plans to attend my brother's function, my husband tried to stop me. When I requested him he started to beat me put all my cloths out of the house and warned me to leave the house ad never come back. I had no choice but go to my hometown, that is in Udupi. I took medical treatement for a day. And we thought of filing complaint against him. Since it was family matter my family members thought of sorting it among the family. We did counsling in one lady police station bangalore, where I denied to go back to him. and we signed an agreement letter as not to trouble each others family instead will sort the issue in court. So after that I moved to Pune and resumed my work from there. Also I filed my concerns to court. But now his sister has given a police complaint on my dad stating, my Dad had abused her and tried to touch her and all. The incident happened about an year back. And the police is asking us to come to station and sort out else arrest warrent will be issued and my dad will be arrested. Please suggest me how should I move ahead with this situation. Thank & Regards Priyanka