The twin derailment that occurred at around the same time at about 1130 pm last night involved the Varanasi-bound Kamayani Express from Mumbai, which capsized first, and the Mumbai-bound Janta express originating from Patna that was coming from the opposite direction.
Officials said that 25 people were injured and over 250 passengers have been rescued.
There were conflicting versions on the exact number of casualties in the accident that occurred between Khirkiya and Bhirangi stations on Khandwa-Itarsi sections, 160 km from Bhopal after the 500-metre rail tracks over a small bridge sank in sudden surge of water caused by heavy rains in the area.
Railway Minister Suresh Prabhu, however, told Parliament that as per available information 12 passengers were killed.
Also Read
Divisional Railway Manager (DRM) Bhopal, Alok Kumar said that 11 passengers of Janta Express and one from Kamayani Express were found dead.
Madhya Pradesh Chief Minister Shivraj Singh Chouhan said 25 passengers were killed in the mishap and 50 others injured. Twelve bodies were found inside the derailed train bogies, he told reporters at the mishap site.
"The prima facie cause of the incident is stated to be 'flash flood due to heavy rains'," Prabhu told the Rajya Sabha amid the din by slogan-shouting opposition members.
Passengers said they were thrown awake by the falling bogies which quickly filled with muddy water.
"We felt the jerk instantly. When we opened the door and checked, there was water everywhere. In no time, the train tilted. And we all got trapped and were stuck for three hours," a survivor said.
A PTI correspondent at the site saw some bogies lay fallen on one side and others leaning in the mud. Tracks were broken, uprooted and scattered, and a detached train wheel was visible in one section.
Though the MP government said that 21 coaches of the two trains derailed, Alok Kumar said seven bogies of the Janta Express plus engine and 10 of Kamayani Express had derailed.
"Prima facie it appears that the cause behind the mishap was heavy rains that was never witnessed in Harda region in my recent memory. Due to it, base material under the tracks got washed out and the overhead contact of the engine got disconnected because of which the trains got stranded on the tracks over the bridge on Machak river," Chouhan said.