This is the temple of the Hindu god Lord Shiva. The temple is significant because of the two Shiva Lingas that are found on a single pedestal. These Lingas are named Lord Shiva and Lord Yama. Collectively, they are known as Kaleshwara Mukteswara Swamy. Kaleshwaram is one of three Shiva temples mentioned in Trilinga Desham, or "Land of Three Lingas."

The holy place draws tourists during the Karthika Month of the Indian Calendar, 16 November – 15 December. Holy baths are held during 6-17 of December. People who bathe here and first visit Lord Ganesha, then pray to Lord Yama and then to Lord Shiva. The temple is open from 4:00 a.m.-1:00 p.m. and 3:30-9:00 p.m.
Access to Laksha Bilwapatri Pooja is given by request to Devasthanam officials at least one month in advance.

Two types of prasadam are inside the temple: Pulihora (Tamarind rice) and Laddu (sweet). This place is very popular for after funeral events like kashi. People believe that this is second kashi in India.

Legend claims that a long time ago, a Vaishya had performed an Abhisheka to Lord Kaleshwara Mukteswara with hundreds of milk pots, and the milk evolved at the sangamam of Godavari and Pranahita.Kaleshwaram is at the juncture of the rivers Godavari and its Pranahita tributary.