1. When you were beaten brutally, did you go to a govt Doctor or Hospital to register your wound as an witness of being tortured by your husband and his family mambers? If yes, then it will be a very good evidence against them,
2. Decide finally whether you will teach them a good lesson or not for which your chance, if any, of going back will become nil,
3. If decided, file a police complaint u/s498A of IPC for subjecting you to cruelty for dowry with all the evidence under copy to DC/SP,
4. If police fails to act, file an application u/s156(3) praying for direction upon the polce to investigate and act based on your complaint,
5. Engage a local reliable lawyer having experience in the field.