What is "adichanallur"

Adichanallur is an archaeological site ( Tamil:ஆதிச்சநல்லூர்) in Tirunelveli district in Tamil Nadu, India. The town is known locally as Aathichanallur, and has been the site of a number of very important archaeological finds. Korkai the capital of the Early Pandyan Kingdom is located about 15 km from Adichanallur.