"Inquiry ordered in derailment... Pending that, ordered action on concerned staff responsible for this. Chair Rail board (Railway Board Chairman) on job of restoration", Railways Minister Suresh Prabhu tweeted.
He said government had extended all possible help to the injured passengers and wished them a speedy recovery.
Thirty-nine passengers of the Mangalore-bound express train were injured after four coaches derailed near Cuddalore district, about 200 kilometres from Chennai, at around 2 AM.