Abstract: The first ever commercial trial of in-pond raceway system (IPRS) aquaculture technology in Bangladesh was carried out in 2020-2021. One of the most popular and commercially important species of fishes in Bangladesh Labeo rohita carp was stocked in a cell at the density of 11.45 kg/m3 and at the end of 198days of production cycle harvest density was 23.31 kg/m3 which is equivalent to 16565.76kg/ha/yr. (projected). Specific growth rate was 0.51% d and overall FCR was 1.47 . Additional 692.31kg/ha, 503.85kg/ha, 1743.59kg/ha 294.87kg/ha 115.38kg/ha and 50kg/ha Labeo rohita, Catla catla, Hypopthalmicthys molitrix , Aristicthys nobilis , Ctenopharyngodon idella and Mylopharyngodon piceus were harvested from outside raceway open pond as co-cultured species. With few exceptions water quality parameters were in suitable range. Recaptured rate was 86.89% . Results show that Labeo rohita is a potentially suitable carp species for IPRS aquaculture in Bangladesh.