Police threat

Once my mother make complaint against police ASI woman commission delhi india send copy to SSP but not any action against that police ASI , once i get loan @ 5 lakh from my friend his given me notice through advocate i receive them but police ASI threat me daily come thana and given statement that time i was not live that place when i came place police CSP and whole thans came to my home and carry me from my house and hit me by CSP i said what is this and warrant and all they hit me and keep in thana and says given him money now what ever you arrange 2 lakh or 3 lakh neither i make any case against you CSP arrest me in thana upto 35 hours , they ask me is that your house had camera i said yes , they told me that all is recorded and you make my complaint so give me that cam and harddisk i said no , you make case and go to court but CSP not agree his goes in my home and threat to my mother and said if you want to your son released then given amount to party @ 5 lakh , whatever you sell home or else , my mother given geervinama of her plot then they party and police release me from thana , but no case file against me , when i out from thana i make complaint against these all to DGP SP CM CS PRESIDENT OF india also , all information comes and goes in search what exact case from CSP done , i given statement to SP also but no resolutions yet , then i make private complaint to district court bhopal , no again police ASI call me and said they part make complaint new complaint against you so come and give statement i said what is these its all ready in court then what new so i ask you sir what can i do for these more , is i give statement that was already given then police kept me in thana at 35 hours , then what statement , can i file more case or info to court for these please guide me i cannot trust police they already hit me in thana when they kept inside thana please , i am research scholar PhD