Benisagar is located on the Orissa – Jharkhand border and is around 85 km from Chaibasa. It is an Archeological Survey of India notified site and excavation works are still going on. There is no proper temple structure. Hanuman, Mata Basuri (manifestation of Goddess Durga), Ganesh and Shivling are worshipped here.
Maa Basuri is depicted as killing Demon Mahishasura.
The most important festival observed here is Shivratri.
There is no prayer in the evening here.
Fruits and sweets like laddoo are offered as Bhoga here.
A huge shivling in rectangular yonipitha, murtis of Agni, Durga, Bhairava, Yamuna and Lakulisha have been found in the site.
It is now believed that from 5th century to 12th century the area was important center of Shiva worship. Tantric traditions flourished here.