Indian Railway Catering & Tourism Corporation [IRCTC] — loss due to chain snatching inside the train

Sir my family in which father mahesh prasad gupta, mother sandhya gupta, sister ritu rana (Married) was travelling from damoh (M. P) to bilaspur (C. G) in bhopal bilaspur express train no-18235 on 6/7/2019 to 7/7/2019 birth s2-3, s2-7, s2-8 around 4 am in morning my sister gold chain around 12grams snatched by thief inside train and my sister yelled loudly then everyone woke up and have seen him jumping of the running train then we have filed complaint in anuppur railway station (M. P) having some hope in mind that they will act on it and but they haven't taken any action on those unknown thieves it is a matter of public safety as my sister also have breathing problems anything could have happened there as there was no railway protection personnel inside the train and it is indian railway obligation to provide safety so at last i want compensation of loss suffered to my sister from railways so sir please take strict action on them i am attaching required documents along with fir