@girishS,
In order to highlight the brightness of your eyes, you should use blue eyeliner or mascara. The color of your applied mascara reflects in the eye and make it appear whitish. Eye pencil also trick people into seeing your eyes glowing and whiter than they are. You can also use a peach pencil to line the inner rims of your eyes and apply a shimmery white shadow in the inner corners bring out the white of your eyes, and to achieve brighter eyes.