Thirty five genotypes of tall indica aman rice were evaluated for nine panicle characters under two environments to find out the extent of genetic variability present in the population. The experimental study indicated existence of considerable amount of genetic variability for all the characters studied. Genotypic and phenotypic coefficient of variation were high for unfilled florets panicle^-1, grain yield plant^-1, panicle number plant^-1, grains panicle^-1, panicle weight and 1000-grain weight. High estimates of heritability, genotypic coefficient of variation and genetic advance were observed for unfilled florets panicle^-1, grain yield plant^-1, panicle number plant^-1, grains panicle^-1, panicle weight and 1000-grain weight. These characters can be effectively improved through selection.