This study on migration examines various aspects of migration of the Indian people: internal migration and displacements due to conflict and disaster, emigration of Indians both during the colonial era and the post- Independence period, illegal emigration of Indians, emergence of vibrant Indian diaspora, the phenomenon of immigration into India including infiltration, and the immigration of refugees and asylum seekers. The impact of environmental degradation and climate change on migration and socio-economic aspects of migration have also been discussed.