Hello Vivek,
You may also try the 3-D Rotation feature in PowerPoint 2007.
1. Select your rectangle.
2. Under Drawing Tools, on the Format tab, in the Shape Styles group, click
on the arrow to launch the Format Shape Dialog Box Launcher.
3. Select the 3-D Rotation tab on the left pane.
4. From what you've posted, you may want to try Perspective Relaxed preset.