The pivotal moment in this phase of excavations was the discovery of a habitation site at Adichanallur, according to exavation director J Baskar, who described it as a milestone discovery.
The judges also asked the ASI when it will accord approval to the Tamil Nadu government to conducting excavations in seven places in the state, including Keezhadi, Adichanallur.
State Department of Archaeology on Wednesday concluded the excavations at Sivagalai and Adichanallur that began on May 25.
Commissioner of Department of Archaeology T Udhayachandran visited Adichanallur and Sivagalai on Friday to inspect artefacts from there.
The excavation in Sivagalai is being carried out in two trenches and seven quadrants.
Meanwhile, the trench reportedly dug using an earthmover for constructing a fence was levelled, after documenting the damages caused to the artefacts.
The expert, an official in the rank of assistant archaeologist at ASI, inspected the site along with a colleague and said senior archaeologists would inspect the site on Monday.
Sources said the fence work was was expedited after the Budget announcement that an on-site museum would be built at Adichanallur.
Adichanallur, an extensive urn burial site, spread over 114 acres, is located on the banks of Tamirabarani river, in Thoothukudi district.