Speak end-to-end only if these train Start & Terminate in Bihar only!! Almost all have major portion covered in other State. E2E is a big issue in train like Lichchavi /Sadbhawna/BJU-G which run almost empty in Bihar!!
Road infra is so bad at Bihar that almost everyone take train to travel. In Magadh AC Coach, a guy was not asked for Ticket when he informed traveling till Buxar and same TTE in front of him, created Fare difference receipt for my MGS travel!! You never know how many are actual travelers with Ticket in Bihar!!