IPC 302 ki FIR h But police accused se mil chuki h and unki giraftaari hi nhi ki aaj tk

Mere bde Bhai k saath 6 ladko ki ldaai hui Mere saamne M eye witness hu Itne m meri family or unki family sb aa gye moke pr Mere bhai k saath ladaai hui but normal ldaai thi thapppad mukke ye sb unhone mere bhai ko maare M 70 metre dur hi khada tha Mene bhaag kr ladaai chhudvaane ki koshish kri Or then sb aa gye or thodi der m mere bhai ko maarne band kr diye thappad mukke Mera bhai akela tha or vo 6 ladke use maar rhe the Ye 9:30 Pm raat k time ki baat h Then use kuch chot to nhi aai but vo bola ki mere chest m dard ho rha h Hamne use doctor k pas le jaana chaaha but vo 15-20 minutes m bola ki M thik hu ab pehle se To ham b normal hogye kunki koi injury nhi aai thi ldaai m Then 2 ghante baad 12 bje use bhot dard hua Or use saans b nhi li jaa rhi thi Then hamne aas paas se car arrange kri and usko hospital ke liye lekar gye Then 12:30 bje hospital le jaate vakt uski death ho gai Uski heartbeat band ho gai Yaani uski ladaai k kreeb 3 ghan baad uski death ho gai Then hamne FIR lodge ki police station m and post-mortem krvaaya Postmortem m uske ear m blood paaya gya And Viscera FSL Lab m bhej diya gya Then hamne police ko bola ki inko giraftaar kro But police ko un 6 ldko ne 20 lakh rupye de diye To police ne unhe girftaar hi nhi kiya Or murder k 20 din baad hi police ne FIR ko cancellation ki application lgaadi ki vaha pr koi ldaai jhagda nhi hua Then ab 1 saal baad FSL lab se viscera report aai usme cause of death poising likha hua h Police unko giraftaari nhi kr rhi Police ka kehna h ki koi ladaai vgera kuch nhi hua juthi FIR h Ham SP se IG se sb se mil liye Hmaari kahi sunvaai nhi ho rhi Ab ham unko kese sajaa dilvaaye plz guide kijiye ?????