The colour fastness properties of the flower of Cordia Sebestena dyed on cotton were studied using combination of mordants such as myrobolan:nickel sulphate,myrobolan: aluminium sulphate, myrobolan: potassium dichromate, myrobolan: ferrous sulphate, myrobolan:stannous chloride in the ratio of 1:3, 1:1, 3:1. The washing, rubbing, light and perspiration fastness of the dyed samples was also evaluated, giving fair to excellent fastness grades.