False case against me.

My name is Shubham Singh,i have a friend name priya.Her father and mother both are characterless and shameless people.her father is a politician.In 2002 her mother ran away with a guy and came back after 3 days.their are lots of case like this her mother did entire life.They also harass my friend both physically and mentally. They beat her they did not gave food to ea her.Her mother says that their is a intimate relation between my friend and her father.In this way they harass her.I always supported and helped her that they did not like about me.On 12/11/2017 her mother tried to make her nude in front of his father by tearing her cloths.That's why priya went to nearest police station tells the problems to a police officer when the police officer came to know that her father is a politician he advice her to not to file a FIR they will understand her parents.But her parent with the help of that police officer filled a false case against me that i am trying to defame them by invoking their daughter to file a case against me.What should i do now ?