Twenty-six wagons of a goods train derailed near Bhabua railway station in Bihar's Kaimur district, damaging tracks and disrupting the movement of more than 50 trains on the busy Howrah New Delhi route. AIR Correspondent reports that the goods train carrying coal, was coming from Dhanbad to Mughalsarai junction.Rail traffic on the busy Delhi-Howrah route is badly affected. The derailment has caused damage to tracks and disrupted regular train services in the grand cord. Prime facie, it seems there was a technical fault in the rail line. But the real cause of the derailment would be ascertained after an inquiry, railway officer said. Rescue operation will take 40 hours for normal functioning more than 50 trains including Howrah Rajdhani, Bhubaneswar Rajdhani, Sealdah Rajdhani and Jammu Tawi Mail are being diverted to Gaya-Patna route. Senior railway officials have reached the site to supervise the rescue and restoration operation. A relief train has been sent to the accident spot from Mughalsarai. Facilitation Centres have also been opened at major railway stations.