At least 15 people have been killed and a number of others injured in a train accident in the north-western Indian state of West Bengal, the Press Trust of India reported, citing officials. A freight train is reported to have collided with a passenger train, resulting in a number of passenger carriages being derailed. Many of the trains and tracks on India’s large rail network are old and in need of repair. Accidents are relatively frequent. In the worst accident in 1981, at least 800 people died. The Indian government has recently invested heavily in modernization, including in express trains…