Help regrading marriage

Hello Sir, i got married on December 2019. It was love marriage , on the day of marriage my husband came drunk and abused my father also in the mandap . but everyone calmed him down and marriage took place. He blame me that he did not wanted to marry me, it was forceful marriage. he danced like anything in the marriage. we have all the videos. before marriage we dated for almost 2 years, in those years also he behaved very abnormal sometimes , he gets angry on small things like he threw lighter on me and then it got blasted . he used to push me from car if i don't put seat belt. he used to drive car like hell. we both are engineer in Bangalore, he is very abusive and violent, he choked me once with his hand and pillow on some fight, hit me many times ,always threatened me that he will leave me , and i also fought against it.. he planned to meet his ex gf after which i got to know from his phone and i talked to that girl also, she said that he always say bad things about you and many other things. he thrown knife on me, put me under blanket and sat on top of me for 2-3 mins. i was unable to breathe and i was crying for help. like that there are many incidents. he was fed up of everything and he left home and came to his native and blamed me for each and everything, they had planned for divorced and i could not take that.so they called me after 2 months with my parents and blamed me for everything. i was silent and crying because i wanted to save my marriage , i did not told anything about him i just said that he abuse me and my parents, he hit me and choked me which he and his family denied. i was socked but still i left that there. and again we started living together . and when we came back to Bangalore. he started threating me that he will leave me this time if anything happens, i was already pissed off from his lying behavior. he always used to abuse my whole family , threatened many times that he will chop my whole family in anger , i also said, there are many things which he said this time and always said he will divorce me and he was not talking to me from 15 days because on a fight , and finally one day i called his parents and his parents started blaming me again which i could not take and he pulled from one room and thrown down in the hall and i got severe pain in head and waist and i abused him and choked him and asked for divorce in anger and called police but later my family said leave that. Prior to that he had said me that go and suicide and his name should not come and i was trying for the same and he was making video. i got message from police that they are coming but but i stopped him. so he came back to his native, i went to my home. now they are saying give everything in written that i have done everything else divorce. if i give in written they will leave me .i want to save my marriage. But they are not ready. They are saying you are not good for my son. he is very innocent , you will kill him one day.What to do.