摘要The monogeneans parasitizing skin, fins, gills of fishes and are pathogenic to cultivated fish and a few have caused epizootic events. This paper presents a catalogue of known species of the class monogenea from the freshwater fishes of five major river systems of India. Data is gathered from all the published records of monogenean species from India and also from NCBI database for molecular studies, including the fish data gathered from Fishbase. Approximately 50 families of freshwater fishes have been reported from five Indian major river systems, having 159 nominal genera. As far as freshwater monogeneans are concerned about, 14 families having 44 genera and 208 species have been reported. In all, the present study takes a broad look at monogenean diversity in the freshwater fishes of India. The available information indicates the rich diversity of these parasites in India for that an integrated approach is necessary which should start with morphological characterization followed by molecular characterization of monogenean parasites in all river system of India. So that subsequent comparison of monogenean fauna present in different river systems of India can be made.