Indian financial system--Investment--mutual fund 73 Aquatic ecology-- Fresh water ecology-- Pond ecology-- Limnology 66 Mutual funds 58 History 55 Literature 52 Aquatic ecology-- Fresh water ecology-- Pond ecology-- Limnology (biology)-- groundwater ecology 49 Economics 36 Philosophy 33 Aquatic ecology-- Fresh water ecology-- Pond ecology-- Limnology (biology)-- groundwater ecology-- Periph 32 History and criticism 30 Finance 26 Research 26 Biography 23 Childrens literature 20 Economic development 20 Law and legislation 20 Folklore 19 Criticism 18 Mass media 17 Literature Malayalam 16 Literature English 15 Methodology 15 Novel 15 Plants 15 Political science 15 Religion 15 മലയാളം; മലയാളം നോവല്‍ 15 Clinical psychology 14 Criticism and interpretation 14 Existentialism 14