Dowry and domestic violence

Hello I got married 2 years back in Shahbad , Kurukshetra Haryana. My in laws asks me Rs 10 lacs cash against the expenses of marriage and taken all the gold which was of my late mother. They said they will only give my mothers jewellery and my clothes and goods when I will give them 10 lacs. At the very third day of my marriage my husband throws footwear on me and slaps me they told I can live only as a servant in their home and follow all the orders they give in spite of feasibility. My husband attempts my murder so may times by closing my mouth and pressing my neck. One day when it Wendy's extremes then I went to my maternal home as no one is there in my fathers family. We are two sisters my father and my late mother. I m the younger one. When I went to my mama's place then they said sorry and taken me back . Then after 4 to 5 days they had taken all my belongings and my cell phone and locked me in a room. Any how I was able to keep one smaller phone with me as I have two phones. Only 14% battery was left then I found Facebook as a solution and posted 3 am about my condition and asked for police protection then some of my friend online at they time helped me to provide safety in terms of local police. Then I lodge a complain in local police station I came back again to my mama's place and started living there . But being Haryanvi people they were not happy with my happiness because being a girl I have to sew my mouth and should start living with them without any complain. My husband calls and came again n again to take me back from my mama's place. He said that he will never abuse me or slaps me in any condition and their parents will not interface in our lives. But all the things are same in present. Even my husband taken me there by telling a lie that he will going Chandigarh for passport and came back from there only but he taken me to Shahbad and there again my husband and in laws do violence they refused for my police verification for passport and then I again file a complain in local police station Now once I came from my maternal home I can go again and again for help So I decided to leave my husband and will start from the beginning What type of evidences I need to have There are also other thing which I can't explain here that I will tell later before filing the complaint