A study to obtain information on the performance and interrelationship of grain yield and yield contributing characters was carried out using 15 Aman rice genotypes. The variety NERICA 10 was the earliest in flowering whereas, BR22 was late flowering type. The highest number of total tillers per plant was produced by BINA dhan7 on the other hand the variety NERICA 1 produced the minimum number of total tiller. The variety BINA dhan7 produced the highest number of effective tillers per hill and the same trait was lowest in the variety NERICA 1. The variety BINAshail produced longest panicle length and the variety NERICA 10 produced the smallest panicle length. The highest panicle weight was recorded also in the variety BINAshail, whereas the lowest panicle weight per panicle was recorded in the variety NERICA 10. The highest number of filled grains per panicle was recorded in the variety BINAshail but the variety NERICA 1 produced the lowest number of filled grains per panicle.The highest yield per plant was produced by the variety BU 1, whereas the lowest yield per plant was produced by the variety NERICA 1.