The history of Harsiddhi Temple is steeped in local lore and tradition, with its origins often intertwined with local legends. While specific historical records may be scarce, the temple's existence indicates a long-standing tradition of Goddess worship in the region. It's believed that the temple has been a place of pilgrimage for many generations, with the structure possibly undergoing renovations and expansions over time. The stories passed down through generations highlight the temple's importance in the social and religious fabric of Champaran. It serves as a reminder of the area's rich cultural past and the enduring faith of its people.