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Abstract
The side portion of a course of river called riverbank. The area is always important to our human civilization for all kinds of development. But it is not so secure for various problems. Riverbank erosion is one of the critical problems in the world at least in some countries. It has a long term consequences on human life. The problems which create challenge in river basin are flood, landslide, land erosion, deforestation etc. The victims are migrated and they become hopeless. On the other hand river bank erosion also affects river ecology in different way. The peoples those lived in near to bank area of river are suffered by economically, social insecurity and health problem indirectly by riverbank erosion. All these insecurities caused by the forced of displacement of riverbank.