The Gorakhpur-Muzaffarpur passenger train "went missing" from Hajipur on the night of Aug 25 after the derailment of a goods train led to the diversion of several trains on other routes.
As this train began taking a new route, passengers quickly got off - and the train was reported "missing", Arun Malik, divisional manager in the Samastipur railway division, told IANS.
"We finally traced it today at a railway station in another division," he said.
Malik said no police case was registered regarding the "missing" train since the railways were themselves looking for it.
He added that the driver of the train also made no contact with the concerned division, adding to the mystery.