In the village of Swamimalai, traditionally known for its bronze-casting heritage, archaeologists have uncovered an authentic workshop dating back to the reign of Kulothunga Chola I. The excavation revealed a series of underground furnaces and several discarded 'lost-wax' clay molds, some of which still contain fragments of bronze statuary. This find is significant because it provides the first physical evidence of the specific metallurgical techniques used to create the world-renowned Chola bronzes.
The workshop also contained a cache of pure copper ingots and tin ores sourced from Southeast Asia, confirming the extensive maritime trade reach of the Chola Empire. Researchers discovered a small shrine within the workshop dedicated to the deity Vishwakarma, the divine architect, suggesting that the craft was treated as a sacred ritual. This site is expected to become a major center for studying the history of Indian industrial technology.