This Compendium provides a collection of readings, which discuss Water and Climate Change linkages from a interdisciplinary angel. It outlines the immense challenges facing the water resources in South Asia region in the backdrop of climate change. This compendium is an attempt to lend researchers, trainers, field practitioners and students in the field of water management a helping hand. It unfolds in eight broad modules: (1) Climate Change and Water Linkages , (2) Impacts of Climate Change (3) Impacts of Climate Change on Society, (4) Measuring Vulnerability and Risk to Climate Change, (5) Adaptation and Mitigation to Climate Change and (6) Responses to Climate Change.