Located in the eastern India, Bihar is the twelfth-largest Indian state with an area of 94,163 km2 (36,357 mi2 ) and an average elevation of about 150 meters above mean sea level. The landlocked Bihar shares boundary with Nepal to the north, the states of West Bengal to the east, Jharkhand to the south and Uttar Pradesh to the west. Bihar has three parts on basis of physical and structural conditions- Southern Plateau Region, Bihar Plain, and Shivalik Region. Third, Shivalik Region in sub-Himalayan foothills of Shivalik range's shadows the state from Northern part of West Champaran over an area 32 km long and 6–8 km wide. West Champaran district are clad in a belt of moist deciduous forest. As well as trees, this consists of scrub, grass and reeds.
