Uthirakosamangai is a Shaiva temple situated near Ramanathapuram. The temple has been glorified by the hymns of Manickavasagar. The temple is considered sacred along the lines of Ramanathapuram, Sethu Madhava Theertham and Lakshmana Theertham. There is an ancient maragatha Nataraja idol carved out of emerald inside the temple. The temple is located 32 km East from Paramakkudi and 10 km west from Ramanathapuram. The annual Arudra festival in December attracts a large number of tourists.