After restoring Vaan island, the Tamil Nadu government has started restoring Kariyachalli island, which is located in Tamil Nadu within the Gulf of Mannar Marine National Park, under the Tamil Nadu Sustainably Harnessing Ocean Resource (TNSHORE) initiative. Kariyachalli island near Thoothukudi has shrunk from 20.85 hectares in 1969 to about 3 hectares in 2025 due to erosion and loss of sediment. The ₹50 crore project is funded by the state government and the World Bank.
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