Rohtas district is one of the thirty-eight districts of Bihar state, India. The Rohtas district is a part of Patna Division, and it has an area of 3850 km² (square kilometres), a population of 2,448,762. The languages spoken in this area are Bhojpuri, Hindi and English. Rohtas compromise three sub-divisons mainly sasaram, bikramganj and dehri-on-sone. The district has a variety of landscapes within a small area, with flat plains running alongside the Kaimur Range and Rohtas Plateau.The climate of the region is sub-tropical and typical of the plains of Northern India, with hot dry summers and cool winters with cold nighttime temperatures. The monsoon is vital for the district as the economy is mainly based on agriculture. Dehri On Sone is also famous for coal depot. This market brings customers from all over of North India for coal trading. There is one hydropower generation unit which generates 6.6 megawatts of electricity. In 1982 Rohtas district became home to the Kaimur Wildlife Sanctuary, which has an area of 1,342 km.This city is well connected with road.
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