Tamil Nadu

As of October 28, 2026, the reservoirs we track across Tamil Nadu that report live levels hold roughly 1,309 hm³ of water — about 25.6% of their combined capacity. Taken together, Tamil Nadu's reservoirs are low.

Across the region, 11 reservoirs are at critically low levels and 7 are low. Varadhamanadhi is the fullest at 100.0%, while Aliyar is the lowest at 0.0%.

Over the most recent week on record, 6 reservoirs rose and 2 reservoirs fell across Tamil Nadu.

Storage figures for Tamil Nadu come from CWC; the most recent reading is from October 28, 2026. Each reservoir below links to its own page with full history and seasonal context.