History 114 Agriculture 88 Land use 86 Land tenure 77 Politics and government 69 Land reform 66 Environmental economics-- Land economics 63 Economics 58 Rural development 58 Land economics 52 Tribes 50 Novel 46 മലയാളം; മലയാളം നോവല്‍ 44 Land reforms 43 Population 41 Scheduled tribes 41 Education 40 Communication 38 Literature 38 Finance 37 India 37 Industries 37 Wildlife management 37 Language and literature 36 Non-governmental organizations 36 Transportation 36 Untouchables 36 Urbanization 36 Tourist trade 35 Land 33