Shri Bhima Kali Temple at Sarahan is the major monument that is duplicated no where else in the erstwhile hill states. Dedicated to the mother goddess Bhimakali presiding deity of the Rulers of former Bushahr Sate, situated at 2150 mtrs MSL this magnificent temple is about 180 kms. from Shimla.With its capital at Shonitpur this former princely state was extended up to entire area of Kinnaur where for somtimes Lord Shiva disguised himself as Kirat.Today, the then Shonitpur is known as Sarahan. Banasur, the ardent devotee of Lord Siva, eldest among the one hundred sons of great oblative demon King Bali and the great grandson of Visnu votary Prahlad, during the Puranic age was the ruler of this princely state.