Jharkhand is one of the richest mineral zones in the world and boasts of 40 percent and 29 percent of India's mineral and coal reserves respectively. Jharkhand is the only state in India to produce coking coal, uranium, and pyrite. Jharkhand is a state in eastern India, carved out of the southern part of Bihar on 15 November 2000. The state shares its border with the states of Bihar to the north, Uttar Pradesh to the northwest, Chhattisgarh to the west, Odisha to the south and West Bengal to the east. It has an area of 79,710 km2 (30,778 sq mi). It is the 16th largest state by area and the 14th largest by population. Hindi is the official language of the state. The city of Ranchi is it is the capital and Dumka its sub-capital. The state is known for its waterfalls, hills and holy places. Baidyanath Dham, Parasnath and Rajrappa are major religious places.