No charge sheet no progress but still charged by police in case

A girl filed FIR against me on 30/01/17 of creating fake account on social media site without having any evidence against me.Today it is 27/09/17 bt no CS filed by police and no progess in the case bt they r saying investigation is on.Do i have to wait till the CS is filed or I can quash the FIR in court because I was forcefully pushed into this matter.I have not created her fke accnt and i have never talked with her.She was my clasmate in clg and tuition.Accdring to fir she had made me accused as some of her frnds told her I(myself) have created her fake accnt which is false.She had not mentioned name of her frnds in fir.She also spread this matter in newspaper and social media news before any conviction and my name is totally defamed.Can i file defamation case against her after quashing FIR in court?Or court will not file FIR before CS?Bt it had already 8 months past since FIR is filed which is enough to quash FIR.And can police file CS even after one yr after in cyber crime cases?