History 540 Economics 509 Politics and government 190 Census of India 180 Philosophy 131 English literature 119 History and criticism 112 India 106 Short stories, Malayalam 105 Religion 96 Engineering 93 Criticism 91 Malayalam poetry 89 Sociology 86 മലയാളം; മലയാളം നോവല്‍ 80 Malayalam fiction 78 Poetry 78 Education 73 Mathematics 73 Biography 70 Literature 70 Agriculture 66 English drama 65 Microbiology 63 Chemistry 57 മലയാളം കവിത 57 Political science 56 Drama 54 Physics 54 Social conditions 54