LABOUR SHORTAGE; 2 MIGRANT WORKERS; 2 Oceanography 2 Stratified sampling 2 ANTHROPOMETRY; 1 Agronomy 1 Atmospheric Protection/Air Quality Control/Air Pollution 1 Atmospheric thermodynamics 1 BENGALI WORKERS 1 BENGALI WORKERS; 1 BIOCHEMICAL RISK FACTORS; 1 Biotechnology 1 CASTE; 1 CHILD ABUSE; 1 CHILD MALTREATMENT; 1 COMMUNITY; 1 CONTRACEPTION 1 CORRELATION 1 Civil society 1 Climatology 1 Combinatorial enumeration problems 1 DECISION MAKING 1 DOMESTIC MIGRATION 1 DOMESTIC MIGRATION; 1 Democracy 1 ETHNICITY 1 EZHIMALA 1 Earth Sciences 1 Ecology 1 Economic development 1