Seeking advice on filing a dv and divorce case

Hi I am Maya 38 and married since 5 years, we have a 4 year old girl. Ever since our marriage took place, my husband used to be abusive. He drinks once in a while, may be in 3 months, or 6 months or in 1 year. Whenever he drink, he abuse me physically, even the small kid. Three years back, he slapped at my ear and there were bleeding; he took me to hospital after 4 days. Doctor said, the wax been loosen and should be removed. Its done, there were no issues for 6 months, later I used to feel dizzy. Currently I need to take medicine regularly. Then I moved to Women’s commission, he said there will not be any issues and we started living together after 9 months. For about 11 months there were no issues, he was not drinking, later on a day we had some high talk and started drinking, the very first day, he slapped me. I called my brother and he came and asked him not to physically abuse me. The very next day he had more drinks and abused me very hard. He was about to kill me and our child. I ran to our neighbor’s house. In front of them too, he hit me. I called my brother, and he came with police. He used so much of abusive words and even tried to manhandle my brother and the policeman. Then the neighbor intervened, and taken him to house and I went with my brother to my home. Before going home, we went to the government hospital and they made an MLC. There were some scars on my face, body. Then this matter has gone to police and they have called my husband twice, but he did not attend. It is 9 months passed since the incident took place. He has sent some of his friends for negotiation with my brothers. They are interested in going ahead with, but I am afraid, he may kill me, if I start living together. Now, I have some questions; What is the next step should I take? What is maximum punishment he could get if I file a case? The child is with me, what if he file a case for child custody What if he file a divorce case or RCR Next year I need to get an admission for my child, any problem if he is not with me. Please suggest Thanks in advance. Maya