King Gadadhar Singha, an Ahom ruler, commissioned the Umananda Temple in the late 17th century. The temple was built on the island known as Bhasmachala, which was later renamed Peacock Island. It has faced natural calamities like earthquakes over the years but has been restored, maintaining its sacred essence. The island itself holds mythological significance, believed to be where Lord Shiva resided. The temple stands as a testament to the region's rich religious and cultural history.