History 15 Malaria 13 മലയാളം; ആത്മകഥ; ജീവചരിത്രം; നവോത്ഥാന നായകന്മാര്‍ 7 Malayalam; Autobiography; Biography; Social Reformers 6 Malayalam 4 Malayalam; Malayalam Literature; Malayalam Short Stories 4 Social Sciences 4 Soil Science and Agricultural Chemistry 4 Women 4 മലയാളം; മലയാളം സാഹിത്യം; മലയാളം ചെറുകഥകള്‍ 4 Bacteriology 3 Diseases-- Pathology-- Pathobiology 3 Heterosexual women 3 Hinduism 3 History and criticism 3 Indic drama 3 Kerala History 3 Malayalam fiction 3 Medicine 3 Novel 3 Quality Control-- Production Management 3 Virology 3 മലയാളം; മലയാളം നോവല്‍ 3 AIDS 2 Advances in production and crop improvement 2 Agricultural Extension 2 Agronomy 2 Arts 2 Biochemistry 2 Biographies 2