Worst Rail Disaster: In the Bihar train disaster on June 6, 1981, a passenger train carrying 800 or more passengers between Mansi and Saharsa, derailed and plunged into the river Bagmati while it was crossing a bridge.
After five days, more than 200 bodies were recovered, with hundreds more missing that were feared washed away by the river. Estimates of total deaths range from 500 to 800 or more. It was the worst Indian rail disaster.