Though Jabalpur has a Garib Rath to Mumbai, it is not that impressive in terms of overall running times. It takes around 16.5 hours, nearly 3.5 hours slower than Duronto. Wouldn't it make it sense to speed this up by a couple of hours? On other days, they could introduce a CSTM-Rewa Superfast on the same slot, thus, JBP will get a daily connection to Mumbai via two trains.