🇮🇳 India · Hydraulic works
Kallanai Grand Anicut
Sangam Period, Early Historic to Colonial · Tamil Chola (Sangam)
2nd century Chola granite anicut (329 m, 150 CE) on Kaveri River, oldest functional dam in world irrigating one million acres.
🇮🇳 India · Submerged site
Poompuhar – Sangam Drowned Port of Kaveripumpattinam
Iron Age Sangam to Early Chola (c. 500 BCE – 500 CE) · Tamil Sangam / Early Chola
Sangam Chola drowned wharf 1.5 km at –2 to –4 m off Kaveri mouth – U-breakwater at –4 m.
🇮🇳 India · Submerged site
Korkai – Early Pandyan Drowned Port, Tuticorin
Early Historic Sangam (c. 600 BCE – 1000 CE) · Early Pandyan / Sangam Tamil
Early Pandyan pearl harbour 8 km inland silted – beacon mound and salt-pan wharf under pasture.
🇮🇳 India · Ancient city
Jhusi (Pratishthana)
Neolithic I (7000–4000) → Chalcolithic II (2500–1200) → NBPW III (600 BCE–300 CE) → Gupta IV · Vindhyan–Gangetic Neolithic → Gangetic Chalcolithic → Kuru-Panchala NBPW
Massive Neolithic–Early Historic mound (c.7000 BCE–1200 CE) on the Ganga's east bank opposite Prayagraj Sangam — 4 ha mound with 16 m cultural deposit excavated 1995–2003 by Allahabad University (G.R.