It is believed that the ancient shrine was erected over a Swayambhu Lingam (that is the self emanated Shiva Lingam). It can be observed that the Lingam is exactly at the centre of the floor of the Garbagriham (the Sanctum Sanctorum) of the temple. Intricate carvings of divine beings, interspersed with human figurines adorn the pillars and the doorframes of the temple. Scenes from mythology find themselves captured in these magnificent carvings.