Korangadu is a traditional heritage rich grazing land lying under the western agroclimatic zone of Tamil Nadu, India in the rain shadow of the Western Ghats. It exists in 500 villages over 50,000 ha. Prevailing soil type in these areas is calcareous type does not allow water stagnation regardless of the amount of rainfall. It is recognized by Globally Important Agricultural Heritage System (GIAHS) as one of the agriculture heritage site. Erratic annual rainfall compels the rural population to

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... lely depend on livestock for their livelihood sustenance. A literal translation of the term Korangadu from the local Tamil language is "left out uncultivated land that allows natural vegetation".