IMO, better the route can be swapped between Uday and VB. Uday can maintain its present running time easily via DPJ HSRA, and it will fetch better patronage also enroute, as it already has. VB at the other end, can be made to run via ED SA TPT BWT KJM, making it faster than it is actually, and if it takes 5 - 5.5 hrs max, it will be a good deal for sure, and the patronage also improves a lot for vande bharat, being a faster option.