Dhanbad is the second-most populated city in the Indian state of Jharkhand after Jamshedpur. It ranks as the 42nd largest city in India and is the 33rd largest million-plus urban agglomeration in India. Dhanbad shares its land borders with Paschim Bardhaman district and Purulia district of West Bengal and Bokaro, Giridih and Jamtara districts of Jharkhand. The city is called the 'Coal Capital of India' for housing one of the largest coal mines in the country.