Uthira Kosa Mangai is a small villa, well known for the Siva sanctuary thought to be 3000 years of age. It is thought to be one of the extremely old Hindu sanctuaries which Tamil writing depicts as "Mann Mundhiyo Mangai Mundhiyo." signifying "Did the mud mann start things out or is the Mangai ". This is where Siva exchanged the privileged insights of Vedas to Parvati. Uthiram implies updesham kosam privileged insights Parvati Mangai thus this place is known as Uthira Kosa Mangai. The principle divinity here is Mangalanathar Siva and his partner is Mangleshwari.
There is a Nandi simply outside the sanctum and a greater Nandi in the external prakaram referred to here as Pradosha Nandi. Uncommon poojas are led here on Pradosham days in the nighttimes as it is trusted that Siva moves between the horns of Nandi amid that time. There are additionally holy places for Kalabhaira and Sanishwarar here. Every column in this sanctuary has excellent carvings and the roof is painted in bunch shades. The principle fascination of this sanctuary is a statue of Natarajar made of emerald which is around 51/2 feet tall. This symbol is known as Margatha Natarajar and the god is constantly secured with shoe glue.