This temple is at Arattupuzha, Pattazhy in Kollam. In ancient times, it was a Kavu. The elder member of the Idamana Brahmin family used to offer worship here. Later, the Kavu fell to ruin. The devotees built a temple and consecrated an idol with four faces and arms that had been lying in the Kavu. Poojas were offered daily to Nagaraja and Nagayakshi. About 600 years ago, the King of Kottarakkara brought some brahmins from the north to do the rituals in the temple. Later, this stopped, and the great flood of 1099 destroyed the kavu and the idols. Later, after astrological consultations, it was found that Siva more and Parvathy were present as Ardhanareeswara. Muruga and Ganapathy were also consecrated. A small temple was first built, and when that too fell to ruin, the devotees of the locality came together to renovate and rebuild the temple. Ardhanareeswara was also consecrated. This idol is almost as tall as a full-grown man. Siva and Parvathy are on the same pedestal with Pasham, Kapalam, Thrishoolm and Rakthambujam in the four hands. Hence, devotees come to worship and make offerings to be blessed with a good married life. Uma Maheswara pooja and Aikamathya pooja are very important here on Mondays, and Dhara and Neeranjanam on Saturdays. Pradosham is also observed with all the rituals. For the Nagaraja and Nagayakshi, Noorum Palum is offered in the month of Kanni. For Umamaheswara, the annual festival is in the month of Makaram, called Atham utsavam. Both Siva and the Nagas are consecrated with equal importance.