History 129 Politics and government 61 Education 60 Sri Lanka 54 India 53 Communication 52 Rural development 48 Agriculture 46 Tribes 42 Finance 41 Industries 38 Scheduled tribes 38 Urbanization 38 Transportation 37 Women 37 Language and literature 36 Non-governmental organizations 36 Population 36 Untouchables 36 Wildlife management 36 Dissertations, Academic (Ph.D) 35 Religion 35 Tourist trade 35 Social Sciences 34 Literature 31 Mass media 31 Economics 30 Thesis (Ph.D)-Chemistry 28 Biography 27 History and criticism 24