Bhagalpur has been associated with silk industry since hundreds of years and is hence known as "Silk City" making it famous all over India for its Tussar Silk & Bhagalpuri Saree. The name Bhagalpur is etymologically derived from Bhagdatpuram (meaning city of Good Luck), as it was called during the flourishing period of the Anga Kingdom. Bhagdatpuram, as per Hindu mythological texts, was the place
where the gods (devtas) and demons (asuras) churned the ocean to procure elixir (amrit). It is believed that the serpent, Vasuki, offered to serve as the rope for the churning. An impression of the coil is faintly visible on Mount Mandara, a granite hill situated along the national highway between Bhagalpur and Dumka. It is believed that Panchjanya, the conch shell used in the Mahabharata was discovered here in the "Shankh Kund". It is said that Vishnu covered the demon Madhu under the hill after defeating him to death. Kalidasa's Kumarasambhava refers to foot marks of Vishnu on the slopes of Mount Mandara. The hill is replete with relics of bygone ages. Apart from inscriptions and statues, there are numerous rock cut sculptures depicting various images of Hindu Gods. The hill is equally revered by the Jains who believe that their 12th Tirthankara attained nirvana at the summit. The area around Mandara Hill is laced with a landscape of extraordinary splendour. The 800 feet high granite hill is a sight to see during daylight. It is a popular picnic spot for people living in the area. References to Bhagalpur can be found in Hindu epics like the Ramayana and the Mahabharata where Bhagalpur has been described as the kingdom of Anga. Ancient cave sculptures from Emperor Ashoka's reign, from 274 to 232 BC are found in the neighbourhood and at Sultangunj, 20 km west of Bhagalpur, a temple from the Gupta period still exists in Bhagalpur. The tomb of Suja, brother of Moghul emperor Aurangzeb, in the heart of the town is reminiscent of the town's association with the Mughal period. The ruins of ancient Vikramashila Mahavihara are located 44 km east of Bhagalpur. The royal university ranks next to Nalanda, and owes its origin to Dharmapala, the devout Pala king who called himself Paramasaugata (chief worshipper of the Buddha) and was a great patron of Mahayana Buddhism. It was the medieval centre for the conservation and propagation of Buddhist education, established at the end of the 8th century. Bhagalpur formed a part of the ancient Sanskrit kingdom of Anga, said to be ruled by king Karna of Mahabharata who was well known for his charity. In later times it was included in the powerful Hindu kingdom of Magadha, or Behar, and in the 7th century it was an independent state, with the city of Champa as its capital. Afterwards it formed a part of the Mohammedan Kingdom of Gaur, West Bengal, and was subsequently subjugated by Akbar, who declared it to be a part of the Delhi empire. Bhagalpur passed to the East India Company by the grant of the emperor Shah Alam II in 1765. Bhagalpur was one of the most important trade centres in Bengal Presidency during the British rule in India. The communal violence that broke out in and around Bhagalpur in October 1989 continued for about two months, during which nearly 1200 lives were lost. Since then, it has emerged as one of the most economically and socially stable districts of Bihar. The Jain Temple at Nathnagar is an important pilgrimage centre for Jains. Budha Nath Temple is an ancient Shiva Temple on the bank of Ganges. Sultanganj (about 25 km West) is an important religious centre for Hindus from where holy water of Ganges is carried and offered at Deoghar. Bhagalpur also has the shrine of Shabaz Rahmat-ulla in maulanachak near Bhagalpur Railway Station and also Centre of Tablighi Jamat at Champanagar.