Six coaches and the locomotive of the Kolkata-Sairang Express derailed near Digaru on the outskirts of Guwahati, Assam. Further details are awaited. A major train accident was reported in Assam this morning after seven coaches of the Kolkata-Sairang Express derailed near Digaru, on the outskirts of Guwahati. Six coaches of the Kolkata-Sairang express have derailed at Digaru railway station at around 6:54 a.m..