Ramanathapuram Vedaranyam Tidal Salt Pan Agriculture Tamil Nadu

The coastal flats of Ramanathapuram district — particularly Mandapam, Uchipuli, and Keelakarai taluk coastline — have supported commercial salt pan agriculture for over 200 years using tidal inundation of levelled clay-bed pans, solar evaporation, and hand raking for crystal harvest. Salt farmers of the Agnikula Kshatriya and Nadar communities maintain pans of 2-5 acres each, filling them with seawater through sluice gates at high tide and allowing 30-45 day evaporation cycles in the intense April-June dry season heat. Harvested salt is bulldozed into 50-100 tonne salt heaps called uppu kalai and dispatched to iodisation and processing plants at Thoothukudi. Ramanathapuram salt forms part of the Vedaranyam GI cluster and represents one of India's oldest artisanal salt production zones, pre-dating the Tata Salt vacuum-pan method by over a century. The district's salt heritage was the site of C. Rajagopalachari's Vedaranyam Salt March of April 1930, a South Indian counterpart to Gandhi's Dandi March that catalysed the independence movement in Tamil Nadu.