Sikkim is witnessing a large inflow of migrant labour from West Bengal, Bihar, and Assam. Higher wages for unskilled labour in the state, large opportunities for employment and shortage of local labour, lead to the massive influx of migrant labour to the state. The migrant labourers get much higher monetary wages than in their native places. But they work for longer hours and their real wages may be lower as they have to incur a higher cost of living in Sikkim on food, shelter and transport. They live in Sikkim on a sharing basis and have limited access to sanitation facilities and safe drinking water. Their working and living conditions expose them to several diseases. They have limited access to health services and their children do not have requisite access to education. They face language problems and face challenges against social integration in the state.