A Ramsar site is a wetland recognised as being of international importance under the Ramsar Convention — an intergovernmental treaty adopted in 1971 in Ramsar, Iran. India became a signatory on February 1, 1982. Wetlands are vital ecosystems that act as natural water purifiers, flood buffers, and rich habitats for biodiversity. They play a key role in groundwater recharge, carbon storage, and climate regulation. The Ramsar Convention provides a global framework to identify and protect such ecologically significant wetlands, ensuring their sustainable use and long-term conservation.