Arachalur is a panchayat town in Erode district in the state of Tamil Nadu, India. It is situated 22 Kilometers from Erode and an important junction on SH 37 en route to Palani and other important small towns like Kodumudi and Chennimalai.DemographicsAs of 2001 India census, Arachalur had a population of 12,313. Males constitute 50% of the population and females 50%.