Train derailed : Mistake: Worst example of mis communication

one of the deadliest train accidents in recent times as rescue operations continued, checking to see if there were people still trapped in the mangled coaches of the Utkal Express that derailed here yesterday.

The railway ministry said 21 people were killed and 97 injured, 26 of them grievously, in the accident near Khatauli in western Uttar Pradesh.
The point is it seems maintenance work was being carried out on the tracks. An investigation will reveal what caused the accident. it is worst example of miscommunication.