https://commons.wikimedia.org/wiki/File:Grand_Anicut_kallanai.JPG Where Is The Oldest Dam In India Located? The Kallanai Dam, also known as the Grand Anicut, is the oldest dam in India and the fourth oldest dam in the world. This ancient dam was built across the Kaveri River in Tamil Nadu’s Tiruchirappalli District. The city of Tiruchirappalli is located at a distance of about 15 km from