No one has been injured in the accident, the sources quoting preliminary reports said.
The incident occurred around 5.15 am, they said, adding a relief train from Sambalpur station has been rushed to the spot.
Train services have been affected on the route as the railway authorities have cancelled the Sambalpur-Bhubaneswar Inter-City Express and diverted the Bhubaneswar-Kurla Express on another route.