"The death toll has risen to 148 after fresh casualties were reported from the hospital. The deceased have not been identified yet," Kanpur IG Zaki Ahmed said.
Some of the injured are still in a critical situation, he said.
The Railway official said that besides replacing rails, electrical works were completed to ensure train operation on the busy route.
After conducting the trial run, train services resumed today, the official said.
"The route became operational last night after the damaged tracks were removed from the site. A trial run was conducted on the tracks before the resumption of train services," he said.
A government helpline has been set up for the victim's families in Kanpur.
Officials had said that prima facie the cause of the accident could be due to a track fracture.
A high-level probe was ordered by Railway Minister Suresh Prabhu, who promised "strictest possible action" against the guilty.
Suresh Prabhu also said in a statement in the Lok Sabha that a separate investigation will be held aided by latest technical and forensic analysis.
(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)
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