Indian Railways — luggage stolen

Sir i zeeshan, my trolley bag color dark brown stolen by unknown person while travelling from bhatinda to mathura with my wife and two year old girl dated 02 sep 17. My pnr no. Is [protected] coach b5 seat 02 & 03. Bag contains01 gold chain with locket, 04 gold ring, 03 pair gold earings, two thousand cash and 18 pair clothes.
Second thing is that tte, 02 policemen and 01 unknown person's behaviour was doubtful that day. Tte gives vacant seat to that unknown person without reservation and after that 02 policemen came and sat with that person and share greetings with each other and after some time check my wife and luggage with torch. So i am doubting these people.
Kindly help me to fix this. Thanks
My no. Is [protected], [protected]
I already lodge a complaint at mathura grp