Indian Railways — theft of items

I am travelling from jodhpur to delhi in mandor express on 19 mar 2018. My bogi no is s-8.. When train is entering in delhi cantt that time some body stollen my bag.. I kept many important documents in beg and also 50 gm gold jewellery items.. My pan card, canteen card, debit card credit card service licience also in beg. After that i am aproching to tte but dont give any responce..