Deoghar,also spelled Deogarh, town, northeastern Bihār northern Jharkhand state, northeastern India. It is a major rail and road junction and agricultural trade centre. An ancient town, it is famous for its group of 22 temples dedicated to the Hindu god Śiva ( Shiva). Numerous Buddhist ruins are nearby. Deoghar has a hospital, tuberculosis clinic, and leper asylum and . The town houses several colleges (including a teacher-training institute) affiliated with Bhāgalpur Bhagalpur University. The Muslim invader Bakhtīyār Khaljī made Deoghar his capital in 1201 after the conquest of BihārBihar. It was constituted a municipality in 1869. Pop. (19812001) town, 52,904; metropolitan area, 59,12098,388.