In 1981, 800 people were killed after a train fell into Bihar's Bagmati river. The Purushottam Express collided with Kalindi Express near Firozabad in 1995, resulting in 300-400 deaths. Over 200 people died in a train collision accident in Punjab in 1998, followed by 1999 Gaisal train disaster. An express train derailed in 2016 in Uttar Pradesh, killing 150 people.