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Cyprinus carpio was introduced into India during 1939 and 1957 for aquaculture purpose and it contributes more than 7.17% in total inland fish production. C. carpio was contributed maximum in the Yamuna river compared to Ganga river in landing scenario. Present investigation indicated that the growth rate was higher in the Yamuna river as compared to the Ganga river at Allahabad. The first two years growths were recorded 20.69 cm and 8.36 cm in the Yamuna river and 19.03 cm and 7.46 cm in the Ganga river, respectively. 0+ to 13+ age group fishes were recorded in the Yamuna while 0+ to 11+ age...