Barharia is a community development block and a town in the northern part of the Siwan District in the Indian state of Bihar. It is one of 13 blocks located in Siwan Subdivision. Barharia is surrounded by Manjha Block to the north, Siwan Block to the south, Goriakothi Block to the east, and Thawe Block to the north. Mirganj, Siwan, Barauli, and Gopalganj ar…Barharia is a community development block and a town in the northern part of the Siwan District in the Indian state of Bihar. It is one of 13 blocks located in Siwan Subdivision. Barharia is surrounded by Manjha Block to the north, Siwan Block to the south, Goriakothi Block to the east, and Thawe Block to the north. Mirganj, Siwan, Barauli, and Gopalganj are nearby cities.