This report concentrates on the impacts of sea level rise as a result of climate change on coastal infrastructure, ecosystems and land in the state of Tamil Nadu, India. It highlights the financial implications of sea level rise on existing and proposed infrastructure along the Tamil Nadu coast and provides thereby an “early warning” of the implications of indiscriminate development close to the shoreline and the need for integrating development planning with climate adaptation and mitigation. The report recommends a comprehensive vulnerability assessment of the entire coast, the integration of climate change considerations into all coastal infrastructure development, special efforts to protect wetlands, and the careful assessment of coastal protection measures and implementation of these where they may be useful.