This study was undertaken to investigate the response of different level of irrigation on crop growth, yield and water use of summer rice crop. Further, field investigation was also undertaken to estimation of crop water requirement for summer rice under drip irrigation system.The results were compared with the surface irrigation treatments. The present study for summer rice crop shows that the total irrigation water applied throughout the growing period of crop for treatment T1, T2, T3, T4, T5 and T6 under drip irrigation was 75.76, 60.60, 90.88, 92.89, 74.31 and 111.47 mm respectively. Similarly, total water applied for T7 (TPR) and T8 (TPR) with submerged irrigation under surface irrigation was 1166 and 1555mm. The water saving in treatments T1 to T6 under drip irrigation over submerged irrigation was found to be 95.12 to 92.83 percent and water saving in treatment T7 TPR with saturated level at 20 Ã— 20 cm spacing under surface irrigation over TPR with submerged irrigation was found to be 25.01 percent. The result revealed that more water saving occurs in drip irrigation. The growth parameters such as plant height, number shoot per m2 were found maximum in the treatments T7 (TPR at 20 Ã— 20 cm spacing under surface irrigation) at 30, 60 DAS and in treatment T3 at 60, 90 DAS and at harvest respectively. The maximum tillers per plant was observed in treatment T2 (0.8V (TPR) with drip irrigation 20Ã—20cm spacing under drip irrigation) at 60, 90 DAS and at harvest. The maximum grain yield was observed 4.2 t/ha in treatment T8 followed by treatment T3 (3.05 t/ha), T7 (4.1t/ha). The minimum yield was observed in T6 (2.1 t/ha).whereas, the values of water use efficiency obtained ranges from 0.19 t/ha-cm to 0.44 t/ha-cm. The amount of water needed to grow one kg of rice was lowest under treatment T2 with a value of 2249 liters of water, and highest under treatment T8 with a value of 5165 liters.