Population 379 Population studies (Demography) 185 Demography 65 Population biology 59 Population genetics 59 Ecology 52 History 48 Education 46 Agriculture 45 Population growth 45 Population policy 42 population 42 Politics and government 40 Finance 38 Industries 38 Rural development 38 Urbanization 38 Scheduled tribes 37 Tribes 37 Wildlife management 37 Communication 36 Language and literature 36 Non-governmental organizations 36 Tourist trade 36 Transportation 36 Untouchables 36 India 34 POPULATION 34 Economics 29 Population ecology 25