The present study has been undertaken to assess various economic traits of Kamrupa birds under backyard system of rearing in Assam. The data on body weights at day old, 5, 20, 40, 52 and 72 weeks of age, age at first egg, egg production up to 40, 52 and 72 weeks of age, egg weights at 32, 40, 52 and 72 weeks of age, the age at sexual maturity, carcass characteristics, egg quality traits, fertility and hatchability were recorded. The mean body weights at 0, 5, 20, 40, 52 and 72 weeks of age were recorded as 37.60g±2.90, 220.50g±38.20, 1030.50g±110.30, 1710.60g±410.50, 1790.60g±380.30, 2010.20g±290.10 respectively in Kamrupa and 34.20g±2.60, 110.30g±32.70, 720.70g±110.70, 1260.60g±410.60, 1410.20g±320.40, 1630.30g±310.20 respectively in case of indigenous chicken. Confirmation traits like shank length, breast angle and keel length were recorded as 49.90mm±4.30, 51.70 degree ±7.20 and 53.90mm±8.20 in Kamrupa and 50.30mm±3.10, 49.70 degree ±6.40 and 52.10mm±7.30 in Indigenous under backyard system, respectively.The mean egg production up to 40, 52 and 72 weeks of age in Kamrupa were recorded as 43.90±2.60, 85.50±5.60 and 148.60±10.80 numbers respectively and in case of indigenous chicken, the corresponding values were recorded as 24.90±2.50, 44.80±3.50 and 76.30±4.30, respectively.