Supaul was a part of Mithilanchal. It is believed that Mahatma Buddha resided in this region for one month. Lord Mahavir too had come across the area. King Gopal belonging to the Palwanshi dynasty once ruled Mithila of which Supaul was an integral part. Later, King Ajatashatru from Magadha dynasty too established his control over the city. However, The City started to develop intensely during 1870 AD after the British rule spread across all over India.
Bhimashankar Temple at Dharhara:
Situated four km from Raghopur, this ancient Shiva temple locally known as Bhima Shankar Mahadeo, lies in Dharhara village . according to legends, it is so named because of its epical association with Kumbhakarana’s son Bhima.
Remains of an old temple are still visible and people say that the foundation of the present temple – which has a modern look – was built on the remains of the old temple.
There is also a statue of Lord Vishnu lying near the Shivalinga. This statue was discovered nearly 100 years ago. There are some stone tablets with some inscriptions which, the locals say, are yet to be deciphered.
A devotee of this region is said to have built a separate temple of Dakini-Shakini in the same premises. Largely ravaged by the rapacious Kosi fiver, this temple, having definite historical significance, has hitherto been neglected by the archaeologists.
People gather in large numbers in this temple on the occasion of Ramanavamin and Vivah Panchami.
Hardi and Lorik Ballad:
Hardi lying eight km east of Supaul, is a centre of religious attraction for the people of Bihar and adjoining parts of Nepal. Although there is no temple worth the name and no statue of any deity at this place, yet it is widely acclaimed as a Shakti Peeth where the devotees worship Goddess Durga under a tree.
According to the local people, several attempts were made to construct a temple here but every time the walls collapsed before being completed. It is believed that the great folk hero of Mithilanchal, Lorik, worshipped the Goddess here. Goats are sacrificed on the occasion of Durga Puja but, strangely enough, no fly is seen around the sacrificial altar here.
The historical significance of this village came to light after the discovery of Bangaon copper plate of Vigrahpal III, in which Hardi village has been described as Hodrey Vishay.
Lorik ballad, describing the heroic acts of Lorik against the atrocities of a local king and his love affair with Chanain, is still very popular in Kosi region. The ballad, dull of melody and pathos, takes full thirty-six hours to complete the narrative!
The Tomb at Surjapur:
Situated under Chhatapur block of Supaul district, this sleepy hamlet is widely known for the mosque containing the tomb of a Muslim fakir who was equally revered by the Hindus and the Muslims of the neighbouring areas.
It is said that Hajeebullah, a Muslim fakir from Mithila, visited this place in the latter part of the 18th century and settled here permanently. Earlier he used to earn his livelihood by manual labour but soon he obtained thousands of bighas of land in the village and started his business in grains and jute.
Hajeebullah was a pious man and had visited Mecca trice. He came to be later known as a fakir and was respected by the people of Hindu and Muslim communities alike. His tomb inside the village mosque is regarded as a holy shrine by the villagers. Once in a year thousands of Hindus and Muslims assemble here on the occasion of his Urs ceremony.