Alagarkovil, is famous for its ancient . Vaishnavite temple, and the beauty of exquisite sculptures in the hall and other 'mandapams' of the temple. The Alwars have sung in praise of the deity of the place and the hills. In addition, Nakkirar, the Tamil poet has composed several popular poems about this deity. As the place itself suggests, the temple is dedicated to Alagar who is popularly known as Sundararajar.