I had mentioned it in a post before that in morning there are 8 trains back to back from delhi namely 18102 Muri, LKO Shatabdi, 12816/12876,Mahananada, NorthEast, (22806,12324,12820,12826), Kalka Mail, Seemanchal all on GZB-CNB section and one Avadh Assam (via MB, BE) (KGM Shtdi upt RMU while BE express) goes to show how less used it is route and how overused is CNB route.