People have been forced to leave from their traditional habitat, temporarily or permanently because of a marked environmental disruption (natural disaster, expropriation and deterioration) that jeopardized their existence and/or seriously affected the quality of their livelihood by which they unable to adopt on their traditional habitats is an old phenomena in India. This country is home to 800 million such poor people, the majority of these people live on ecological fragile land and due to lack of institutional and financial capacity they unable to protect against natural as well as market based climate change. Among them various people belong to “Adibasi” (Tribal) communities across the country. They all have force to tolerate day-to-day burdens such as water shortage, food insecurity, disease, sea level rise and other environmental problems. As a result of people are being displaced internally by temporary or permanently with no hope of a foreseeable return to original inhabitant cause by expropriation such as dam or irrigation projects, mining etc. According to the Lok Sabha reports LARRDIS, 2013 around 50 million people have been displaced to the name of development projects over 50 years in India. It is look at the policy interventions by national, regional, and international actors by targeting to adaptation and disaster risk reduction. At present humanitarian issues on climate change is very concern in worldwide. It is broadly includes the mean to right, needs, demographic and technical change. In this paper, an endeavour has been made to examine theoretical framework pertaining to the nexus between environmental disruption and population displacement, and contemporary legal challenges on the issues. The aim is not only offer to expedient answers to how policy on must to be but to suggest policy alternatives in Indian perspective.
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