KOLKATA: One person was killed and 18 others seriously injured after a bus overturned and hit a motorcycle in central Kolkata's Mayo Road area on Saturday evening, police said. The minibus, which was operating on the Metiabruz-Howrah route, was heading towards the Mayo Road-Dufferin Road crossing when the accident happened around 4.40 pm, they said. The driver of the bus suddenly lost control, following...