The mishap occurred around 2 AM today when the four bogies of the Mangalore-bound train jumped the tracks at Puvanur near Vriddhachalam in Cuddalore district, about 200 km from here, police and southern Railway officials said.
Of the 39 injured, 36 were administered first aid while three others were admitted to a hospital in Vriddhachalam, Railway officials said.
Rail traffic was disrupted on the busy route. Several trains were halted at nearby stations. They were later operated on alternative route but were running late, officials added.
