Whilst the CNB-ALD section runs at/beyond capacity and the trend is similar for CNB-ON-LKO section; we have tracks running from Unnao-Sitapur which are woefully underutilized and see only a single pair of passenger train per day. Same is for the ON-RBL tracks which too has too little trains. IR ought to upgrade these sections both to benefit passengers on this route and exploring alternate routes.
It'll help connect CNB with STP more efficiently. Also, I find it ironical that Kanpur-Allahabad has an alternate route sitting right next to the main route that...
more... is only ~14 km long. If that route is doubled and speeds upgraded, trains can easily find a way from CNB to ALD without choking on the main line.