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Vaan Island Restoration
February 28 , 2026
17 hrs 0 min
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- A technical assessment reported a Benefit-Cost Ratio (BCR) of 2.34 for the restoration of Vaan Island.
- The assessment was conducted by the Tamil Nadu Coastal Restoration Mission, Suganthi Devadason Marine Research Foundation and the Indian Institute of Technology Madras.
- Vaan Island is one of 21 uninhabited coral islands in the Gulf of Mannar.
- The island had shrunk by 92% between 1969 and 2015 due to coral mining, reef degradation and sea-level rise.
- Artificial reef modules were deployed from 2015 to prevent erosion and restore the island.
- The project generated socio-ecological benefits worth ₹61.67 crore against a cost of ₹26.37 crore.
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