498a filed by wife in police station, only chapter case file

Hi all, My wife filed 498a in local police station in January 2016. Then police called us for our statements. Police filed chapter case u/s 116 and 107 in February 2016. Then they did nothing. It has been 2 years now in that matter. What should be my next step. I am fighting DV and 125 currently. Can police file FIR in 498a now? What can I do to avoid 498a. Thank you in advance.