The project focuses on the impact of climate change on mangroves ecosystem as well as the socio-economic vulnerabilities of coastal communities in three South Asian countries, i.e. Pakistan, Bangladesh and Sri Lanka. The project includes climate change scenarios development, mangroves forest cover change analysis under different hydrological regimes, environmental flows assessments under different ecological conditions, salinity distribution due to sea level rise (SLR), socio-economic assessment and institutional, and policy analysis. Different methodologies were used for the assessment of these studies, which are the combination of both quantitative and qualitative techniques. These studies would lead to new discussion on adaptation and water management. They also provided the ground for more advanced and complex scientific modeling techniques for detailed impact studies in the region. Also the results can provide in-depth understandings to researchers, academia, civil society and community based organizations, and local and national policy makers to develop policy options for the effective mangroves ecosystem protection and adaptations for local populations.