Dhanbad is a city in the state of Jharkhand, and is also known as the 'Coal Capital of India'. Dhanbad is among the top 79th fastest growing cities of world. According to 2001 census, Dhanbad is among the 35 cities of India with population more than one million. Among the Rail Divisions of Indian Railway, Dhanbad Rail Division is in second position in terms of revenue generation. Dhanbad is famous for coal mining. Tata Steel, BCCL, ECL and IISCO are some of the companies having coal mines in th… (More on Dhanbad)