A girl made false statements in a police station and her brother in law who has relative of one IAS officer and threatened me to compromise which was forcefully or else FIR will be registered ,then the next day the local SHO forcefully called me and threatened me in the phone itself to come to police station and to write a compromise letter or else FIR will be booked and ,when i ignored the SHO took the FIR sheet ,then without any choice "I have forcefully written that the case will be filed in court and I will try to remove her name but not sure " .Now can I file the case against her regarding this issue and what is the main procedure.