Many of the 156 injured were in a critical state, Awanish Kumar Awasthi, Principal Secretary to the Uttar Pradesh Chief Minister, said.
"A total of 156 people were injured in the Utkal Express train accident and among them, many remain critical," Awasthi told PTI over the phone.
Fourteen coaches of the high-speed train jumped the rails, with one of them crashing into a house by the tracks near Khatauli.
Muzaffarnagar authorities have set up a control room to assist the families of those affected. The numbers are 0131- 2436918, 0131-2436103 and 0131-2436564.