If I am mentally and physically been abused and badly beaten by my husband many times from last 8 years, what should I do?

I am a normal housewife, age 28, studied inter, married in 2008 and had beautiful two children. First year was okay from my husband and their parents because there want money from my father. My father was a nice man a kind hearted man he gave some money for his business. My husband and their parents said there will take it as a lone and return it in funds but they don’t want to return it and started abusing me and nearly started beating me. Then first time they thrown me from their house like my husband and their parents said to me get out. I was like full of blood my both hands are bleeding and my leg was like almost broken because they bet me with cricket bat. It was like a hell movement to me on that time and in my hand my child was there and I was roaming on the roads for two hours and child was crying because of hungry it was afternoon time. Then I went to a shop for begging milk for my child. I was belong to a rich family lived luxury life and after marriage my life was became hell. And no comes to support me don’t know why. They had thrown from the house 4 four times and didn’t let me in for 3 three months. And in three months I had called many times for my children but they did not let me talk to them. How anyone can be so much cruel like a 4 four year girl and a 7 seven year boy and separated them with their mother.