Dp3 complaint

Hi All friends 2 month back i sent a DP3 complaint through registered post to police station, where my 498a registered, and DCP office. and after that i filed RTI for DP3 FIR, progress of my FIR and other. After 1 month of RTI police are not giving answer and also saying that u can file first appeal. what to do now?. They are not giving me written reply for why they have not registered my complaint. Where should i complaint this and what to complaint? plz advice. Thanks Ravindra Sonavane