This train needs to speedup by 2hrs to make ot SF. With one more rake it can be made triweekly, biweekly via BJP and weekly via BGM. Daily train is not needed to Varanasi instead one more weekly can be planned sharing slot to Lucknow Ayodhya Gorakpur.
The slot sharing issues will be there but IR need to make close slots within 30 mins for some common route and increase frequency of existing trains.