Around 1,500 artefacts were recently excavated at Pattinamarudhur, located near the coast of Thoothukudi Archaeological Site, by the Tamil Nadu State Department of Archaeology.
The excavation found ancient coins, porcelain pottery pieces, shell ornaments and figurines.
Experts believe Pattinamarudhur was an important coastal trade centre similar to Korkai, the ancient port of the Early Pandyas.
Korkai was famous during the Sangam Age for pearl fishing and trade with the Roman Empire and the Far East regions.
The discoveries show that the region had different cultural phases and active maritime trade in ancient times.