What has come in for the most daunting challenge to the ingrained conventional pronouncement of security in Westphalia parlance built around state and its corresponding apparatus is none else than the very inordinate and relentless human interference into the functioning of nature in pursuit of development, requirements of modernity and civilized and exorbitant life style culminating in climate change along with its apocalyptic consequences wrought on human beings and non-human living things. This non-traditional security challenge is no where seen more glaringly than in the conext of Bangladesh being hazardously vulnerable to the havoc of natural calamities like sea level rise, global warming, cyclones and hurricanes etc. Threatened by the ever engulfing rising sea level and other disasters, the people in low lying regions of Bangladesh are on their heels to areas within the country or to the neighbouring countries like India for their living and sustenance. The continued influx of Bangladeshis as environmental refugees into Indian territories like Assam in conflation with the original inhabitants of a different ethnic origin has in recent years not only ignited the scourge of violence and killing of human beings and but also paved the way for the emergence of local uprisings like ULFA and Bodoland movements ultimately dragging both India and Bangladesh into the conflagration. This book delves deep into the entire gamut of the crisis and unveils the linkage between climate change and ongoing migration from Bangladesh focusing on the desideratum of addressing the root causes of environmental crisis not only at the local or regional but also at the global level in order to unearth a possible solution.