The Kuzhandai Velayudhabani Swamy Temple is dedicated to Lord Murugan, worshipped here as Kuzhandai Velayudaswamy, meaning 'child Velayudha.' The temple is situated on a small hillock, approximately 150 feet high, requiring climbing around 108 steps to reach the main shrine. The name 'Kurunthamalai' is believed to be derived from the abundance of 'Kurunda' trees that once covered the hill.
The temple is considered to be at least 700 to 750 years old, with some sources suggesting it could be over 1000 years old or built in the 14th century. A significant legend associated with the temple states that Sage Thiru Agasthiya received 'Mandira Upadesam' (sacred teachings) from Lord Murugan himself at this very spot, making it a highly revered site for devotees.
Another local lore recounts how a merchant, who lied about carrying husk instead of spices, had his goods miraculously turned into husk by a boy, who was later revealed to be Lord Murugan. The merchant then sought forgiveness and dedicated himself to building the temple. The main deity, Lord Murugan, faces west, which is considered unique, similar to the Palani Murugan Temple.
At the foothills, there is a shrine dedicated to Lord Ganesha (Vinayak). En route to the main temple, there are several other shrines, including those for Kashi Viswanathar and Visalakshi, Panchalingam, Valli Devasena Sametha Arumuga Subramanyar, and a Hanuman temple on an opposite hillock. The temple also features a special star-shaped spring that is said never to run dry, providing holy water for the deity's rituals.
On special occasions, Lord Murugan is adorned as either a Prince or a Hunter. The temple's glory has been praised in ancient texts and hymns, including 'Thirupugazh' by Arunagirinathar. The temple is maintained by the Hindu Religious and Charitable Endowments Department of the Tamil Nadu government.