The 5month excavations carried out at Alagankulam, located on the confluence point of the Vaigai river and Bay of Bengal in Ramanathapuram district.
The antiquities and structures found at Alagankulam prove that there existed an urban civilisation, Industries and trade connections to overseas countries.
The discovery of burnt brick structures proves that people used such bricks during the Sangam period in Tamil Nadu.
A cross symbol-inscribed seal shows that it must have been used by the Romans who had landed here for trade.