Vadalur is a town in Cuddalore district. Vadalur is famous for the temple "Sathaya Gnana Sabha", established by the famous saint Ramalinga Swamigal popularly called 'Vallalar' before 150 years. Every year the auspicious day "Thaipoosam" is celebrated as a grand occasion which attracts lot of tourists from all over the world. The cancellation depicts Sathya Gnana Sabha temple.