Railways announced ex-gratia payment of Rs.50,000 in case of grievous injury and Rs.25,000 for those with minor injuries in the Mahakaushal Express derailment on Thursday.

While the UP ADG (Law and Order) Daljit Chaudhary said 52 passengers were injured in the mishap, Minister of State for Railways Manoj Sinha said 21 were injured, including one seriously.

Railways has ordered an inquiry into the derailment of the Jabalpur-Nizamuddin Mahakaushal Express in the wee hours of Thursday near Mahoba in Uttar Pradesh.

Prima facie, a crack in the rail tracks seems to be the cause of the derailment.

The mishap disrupted rail traffic on the route with services of 14 trains disrupted, railway officials said.