Most of the usable coaches have already been transferred to Nagpur from where they will either be used on the Naghbir route or sent to other routes. These are the ones that have reached their end of life. Most of the NG stock was refurbished instead of being replaced, as the zones were just tryong to use old stock until GC instead of getting new stock. So, most of these coaches have exhausted their revenue potential, and can be even dangerous if put into service now. May be a toy train will be put up around the heritage museum with some of these rakes ( like the ones we have in NRM and RRM's).