Konthagai excavation site in Sivagangai district, part of Keeladi cluster was found submerged in water due to seepage into the excavation sites from below.
The site is situated less than a couple of kilometres away from Keeladi site.
Two burial urns were unearthed in 2022.
With one of them is containing 20 offering vessels, including shallow bowls, miniature pots and a ring stand, which were things buried along with the dead.
An iron sword measuring 40 centimetres was also found at the site in 2022.