Dissertations, Academic (Ph.D) 2,197 Biochemistry 397 Microbiology 351 Enzymes 264 Criticism and interpretation 250 Thesis (Ph.D)-Chemistry 233 Physiology 226 Thesis (Ph.D)-Malayalam literature 167 Dissertations, Academic(Ph.D) 165 Thesis (Ph.D)-Physics 162 Thesis (Ph.D)-English literature 156 Kerala 151 Pharmacology and Toxicology 149 Thesis (Ph.D)-Hindi literature 136 Thesis (Ph.D)-Education 130 Dissertations, Academic (Ph.D.) 127 Thesis (Ph.D)-Commerce 120 Thesis (Ph.D)-Economics 119 Genetics 117 Biology 114 Nutrition 113 Cell Biology-- Cytology 110 Pathology 108 Thesis (Ph.D)-Botany 105 Proteins 104 Hormones 95 Enzymology 91 Biotechnology 90 Academic writing 87 Agriculture 86