Sonepur or Swarnpur as was once known marked the southern-most tip of the kingdom of King Prajapati Daksha, father of Sati, who was married to Lord Shiva.
The Mela starts on a full moon day of Karthik Purnima, generally in the month of November, as devotees flock to offer prayers after taking a holy dip at the confluence of Gandak and Ganges rivers.
