No matter how many lanes you create but without flyover & sub-way etc the traffic gonna get choked (as like toll plaza)!! 3/4 Lane only will not work when Freight ex Corridor & Naini/Chunar will merge on mainline along with JBP side passenger traffic..remember they cross over Trunk Line..and they still will irrespective of how many track you lay!!
Freight Corridor connection ex DDU may ease for a while but will not offload JBP Passenger Traffic!!