The Magadh Express from New Delhi to Islampur split ... It uncoupled between coach no S-7, the 13th from the train engine, and coach no S-6, the 14th from the engine between Twiniganj-Raghunathpur ...
According to HT's sister publication Live Hindustan, the Islampur-bound Magadh Express left Dumraon station at 10:58am. A few minutes later, near Turiganj, the coupling of S-7 coach broke.