Economics 21 Education 7 History 6 Religion 6 Women 6 Folklore 5 Islam 5 Mental illness 5 THEORETICAL PRINCIPLES OF INORGANIC CHEMISTRY 5 Commerce 4 Economic growth and development-- Economic Planning 4 Finance 4 Mental Disorders 4 Philosophy 4 Caste 3 Chemistry 3 Engineering 3 English drama 3 Haiku 3 Hankel operators 3 Inorganic chemistry 3 Language 3 Law 3 Learning 3 Malayalam; Malayalam Novel; Literature; Malayalam Fiction 3 Management 3 Microbiology 3 NATURAL PRODUCTS-- THE SCONDARY METABOLITES 3 Organic compounds 3 Poems 3