Kanwar Lake is Asia's largest fresh water ox-bow lake. It lies in Manjhaul sub-division of Begusarai district in North Bihar. It is the only Ramsar site in Bihar. Due to rich biodiversity and socio-economic value Kanwar Lake deserve its international importance. The Kanwar Lake is situated at 250 55' N latitude 860 10'E longitude. A collection of species of ornamental fishes was made from the Kanwar Lake. The present investigation work highlight the Kanwar tal's ornamental fish diversity. The study was carried out during the year 2021-22. Different types of nets, traps and other fishing gears were used by the fishermen during study period. The maximum number of sample ornamental fishes were caught mainly from the eastern and southern part during pre-monsoon and post-monsoon period from the Kanwar Lake. The 26 species belonging to 14 different families of class actinopterygii were identified having order cypriniformes and others. Main aim to perform the study is to highlight the awareness of identification and culture of indigenous ornamental fishes of Kabar Lake.