The dam itself is a quick photo stop; most of the actual draw (gardens, fountain) is the adjacent Brindavan Gardens ticket, not the dam viewpoint
Maharaja Krishnaraja Wodeyar IV approved construction in October 1911 despite finance-ministry objections that the project was unviable, allotting an initial Rs 81 lakh. Built across the Kaveri River near Kannambadi in Mandya district under chief engineer Sir M. Visvesvaraya, the dam employed thousands of workers and was completed by 1931-32, displacing several thousand residents whose villages lie submerged beneath the reservoir. It was among the largest gravity dams in Asia at the time and remains central to irrigation and drinking water supply for the Mysore-Bengaluru region.