The impact of rising sea level in Sundarban region has been experienced by the extensive land erosion and land\ud
encroachment by the rivers and sea. The rapid land erosion reduces the size of the island which forces people to leave\ud
the area. It is the embankments which have been shifted towards the villages and the rivers and sea capture the hamlets\ud
close to the embankments. Once a large area encroached by the rivers and sea, people become refugee and move from\ud
affected villages to safer location at the same island or some other islands as per their convenience and capability to\ud
purchase the land. But there are people who do not leave the village and move according to the movement of new\ud
embankments. The research has been conducted by following ethnographic approach in villages in Sundarban region to\ud
see the demographic changes among the affected villages and neighbouring villages at the same island and to see the\ud
patterns of migration from affected villages to safer locations. It is found that, migration from affected village to nonaffected\ud
villages depends on livelihood strategies among the villagers. Though affected people find permanent safer\ud
location at the mainland or safer place at same island or others island, they do not leave the affected area because of\ud
their livelihood opportunities at the affected villages. It is also found that, the migration towards the safer locations of\ud
the same island increases the population density in the non affected villages and the value of has increased due to the\ud
high demand of land
