This document provides an environmental impact assessment for the proposed Sethusamudram Ship Channel Project off the coasts of India and Sri Lanka. It describes the project background, scope of study, and components to be included in the assessment such as coastal water environment, marine environment, land environment, biological environment, socio-economic and health environment, and ecological risks. It also discusses the oceanographic status and environmental setting of the project area and route alignment, including waves, tides, currents, sediment transport, bathymetry, and biodiversity of islands in the study region.