History 174 Birds 146 Cities and towns 102 City planning 94 Literature 75 Religion 75 History and criticism 68 Management 56 India 55 Urbanization 48 Philosophy 41 Mathematics 40 Ornithology 39 Chemistry 37 City and town life 37 Hinduism 36 Novel 36 Social conditions 34 Aves (Birds) 32 Mass media 32 Sociology 31 Congresses 30 Politics and government 30 Sociology, Urban 30 Biography 29 Economics 29 Statistics 29 Social aspects 27 Women 27 Research 26