Sarguna Lingeswarar Temple, also known as the Karukudi Nathar Temple, is a Hindu temple located at Marudhanallur in the Thanjavur district of Tamil Nadu, India. The temple is dedicated to Shiva.
It is believed that Lord Sri Rama worshipped here before proceeding to Lanka. As there was the delay in getting a Linga from Hanuman, to keep the puja time, it is said that Sri Rama made a Linga with sand, the Prithvi Linga. The Linga brought by Hanuman is also in the temple as Hanumantha Linga. According to one story that a trader Dananjayan by name incurred leprosy as he had an intercourse with his stepmother unknowingly and got cured with his prayers to Lord.