Hi mmahadevan,

As far as I know there is no standard way to change that appearance but I can offer you a workaround to achieve a legend like that on attached image.

You can hook ChartDrawItem event and to search for Legend's boxes and texts and to change their position and appearance. Here's a snippet used to achive the lened on the image.

         private void ultraChart1_ChartDrawItem(object sender, Infragistics.UltraChart.Shared.Events.ChartDrawItemEventArgs e)
        {
            int newBoxHeight = 3;
            int newBoxWidth = 30;
            // try if it is a Box primitive which belongs to legend and it is not the external legend's box           
            Box box = e.Primitive as Box;
            if (box != null && !string.IsNullOrEmpty(box.Path) && box.Path.EndsWith("Legend") != false && box.Column != -1)
            {
                box.rect.Height = newBoxHeight;
                box.rect.Width = newBoxWidth;
            }

            Text text = e.Primitive as Text;
            // try if it is a Text primitive which belongs to legend and it is not the external legend's text
            if (text != null && !string.IsNullOrEmpty(text.Path) && text.Path.EndsWith("Legend") != false && text.Column != -1)
            {
                text.bounds.X += newBoxWidth; // increase according to newBoxHeight in order to center the text                
                text.bounds.Y = text.bounds.Y - 3; // decrease according to new box space
            }
        }