Rudrasagar Tank is known as Na Pukhuri. It was dug by Swargadeo Lakshmi Singha in 1773 . And the Shiva Doul was built by Swargadeo Lakshminath Singha (1769-1780) and opened  during the period  of Swargadeo Gaurinath Singha.

Rudrasagar Shiva Doul