Literature 258 Literature Hindi 232 Marine ecology-- Ocean ecology-- Sea ecology 117 Marine biology-- Biological oceanography, Marine Science 115 Marine ecology 71 Hindi literature 64 Oceanography 53 Marine pollution 50 Religion 45 Marine biology 39 Topology of spaces-- Manifold topology-- Metric topology 39 Novel Hindi Study 34 Dissertations, Academic (Ph.D) 33 Hinduism 31 Marine fishes 31 Marine pollution-- Pollution in Ocean 31 Poetry Hindi 31 History 29 Metric spaces 27 Marine phytoplankton 26 Thesis (Ph.D)-Hindi literature 26 Zooplanktons-- marine invertebrates, marine zooplankton 26 Mathematics 25 Poetry Hindi Study 25 Ecology 23 Hindi 23 Social Sciences 23 Fisheries 22 Philosophy 22 Psychology 22