History 216 Agriculture 93 Land use 86 Politics and government 82 Land tenure 77 Tamil Nadu 76 Economics 74 India 68 Land reform 66 Rural development 64 Environmental economics-- Land economics 63 Literature 58 Education 52 Land economics 52 Criticism 47 Tribes 47 Finance 43 Land reforms 43 Population 42 Communication 41 Hand book 39 Scheduled tribes 39 Industries 38 Wildlife management 37 Language and literature 36 Non-governmental organizations 36 Tourist trade 36 Transportation 36 Untouchables 36 Literature Hindi 35