Deoghar is the main city of the Deoghar District in the Santhal Parganas division of the state of Jharkhand, India. It is an important Hindu pilgrimage centre with the Baidyanath Temple being one of the twelve Shiva Jyothirlingas in India and one of the 51 Shakti Peethas in India. It is situated 150 km from regions largest city Bhagalpur. Deoghar was earlier part of dumka district.