History and criticism 11 Agronomy 5 Literature 5 Tantrism 5 Chemistry, Organic 4 Mathematics 4 Complex compounds 3 India 3 Medicine, Ayurvedic 3 Novel 3 Organometallic compounds 3 Sanskrit literature 3 Vedic literature 3 Agriculture 2 Biography- P Govindapillai 2 Business planning 2 Criticism, interpretation, etc 2 Early works to 1800 2 Fiction 2 Healing 2 Hindi poetry 2 History 2 Human-animal relationships 2 Intellectual life 2 Kerala 2 Literature English 2 Malayalam literature 2 Malayalam translation 2 Ocean travel 2 Orphans 2