Thamirabarani River civilization

The Thamirabarani River civilization is an ancient civilization discovered in the southern state of Tamil Nadu. A US-based lab ? Beta Analytic ? has estimated this civilization to be at least 3,200 years old. The researchers made this conclusion by carbon-dating the remains obtained by archeologists.
The Miami-based lab studied the organic materials like paddy and soil found in an urn that was discovered during the excavation near Thamirabarani river in Thoothukudi district?s Sivakalai. They estimated the date of the civilization to be 1155 BC, during the later part of the Indus Valley Civilisation.