Railway complaint — Reminder complain

I am a citizen of erode.I am talking about the theft that took place when I was travelling in surat -malda express on 26.04.2016.I reached raipur and got down there itself.When I reached my home at raipur, then I got to know about the theft that had taken place.The ornaments worth Rs.15000 was lost.Till date I have not received any reply by railway authorities.I have already complained and I am again complaining about it.I hope now that immediate steps would be taken.Please reply me. Train no.-13426. PNR no.-[protected]. Contact no-[protected].Please contact and reply me.