How to file a complaint for threats and forced marriage?

I am a 26-year-old girl and a government servant. My parents have decided to marry me off to a person I don’t like. They have been pressuring me, beating me, and threatening to kill me because I am in love with another person for the past 7 years. He is also a government servant, and we both want to marry. We have expressed our wishes to our families, but my parents are not accepting due to inter-religion issues. They are pressuring me to marry urgently. My brothers, mother, uncle, and relatives have been threatening to kill me, my boyfriend, and his family. They are also threatening to disrupt our jobs. They even forcefully locked me up and restricted me from going to my office. They have also snatched my phone and are trying to file false cases such as cheating and rape against my boyfriend. I have decided to go to the SP office to file a complaint against my mother, brothers, and uncle. Please guide me on how to file the complaint, and will they take action and send me with my boyfriend?