Fake 354

My girlfriend has filed a case (354, 506)..she said that I was just her friend and later I forced her to have sex with me..I have all the proofs that she was my girlfriend..now what can I do?? In police station the behaviour of cops was not at all good they even slapped me and they said we will put false rape case and to avoid this they demanded for 3lakhs ( I have recording as a proof)..when I received the FIR copy the address mentioned by the girl was different than what she said to me..I used to drop her in front of a tower and she used to say that she lives there..but after receiving the FIR copy I got to know that she is staying in a middle class society for last 2 years that too on rent..Her father already knows everything and he said the cops to delete all the data pics and msg from my cell phone..now I only have pics as a proof that she was my girlfriend and police slapped me and demanded for 3lakhs..she has also printed the false article in the newspaper that I forced her to have sex with me (I have the newspaper with me)