Remedies available for false case

Dear sir, there was a situation where my youngest sister aged 13 years 8 months we're fleed in love story case with a boy aged 19 years, we filled a complaint against the boy and his father and mother regarding kidnapping of minor, Fir was lodged and very next day they boy and girl we're surrendered, the girl was sent to cwc and later released to parents. And the boy got bail.after this incident after around 3 months, the girl again fleed, my father and mother went to boys home for the girl, but locality favour the love story and sent us back forcefully without the girl, after 1 he we went to police to inform them about the case, police reacted and recovered the girl after one day. The girl is at our home now with parents. After this incident the boy's parents registered a false allegations against my family member include me my elder brother, dad,mom, elder sister and her husband .the allegations was for theft, defaming, and breaking furniture. We did nothing, what to do now?