Modi has spent billions modernising India’s trains but safety is biggest need

Though the number of railway accidents has come down in the past few years, derailment remains the main cause

There is no railway system quite like the Indian railways. Trains remain an essential lifeline in India, the world's most populous country of 1.4 billion people, carrying about 13 million passengers a day for work, family and leisure on trains that weave across 40,000 miles of track, more than enough to wrap around the Earth.

Friday night's collision involving two passenger trains and a freight train in the eastern state of Odisha was one of the worst accidents since 1999, when a collision between two trains in West Bengal killed 285 people. More recently, 160 people died in 2016 when the Indore-Patna Express derailed and as recently as February, two goods trains collided in Uttar Pradesh.