History 157 Economics 151 India 80 മലയാളം; മലയാളം നോവല്‍ 75 Biography 73 Malayalam literature 73 Literature 72 Novel 68 Criticism 67 Malayalam fiction 63 Poetry 51 Drama 47 Malayalam; Malayalam Novel; Literature; Malayalam Fiction 47 Management 47 Agricultural economics 45 Essays 45 English literature 44 Sociology 44 Philosophy 43 Hindi literature 40 Education 38 Hindi 35 Religion 35 Literature Malayalam 34 Agriculture 33 മലയാളം; മലയാളം സാഹിത്യം; മലയാളം ചെറുകഥകള്‍ 30 Hinduism 29 Rural development 29 United States 28 English 27