Hi
I got a solution from a friend "Abhijeet" and its working.
Try the following steps:
Click File > Publish and then select Preferences in the
Project Information area.
On the left pane, under Project select Settings.
On the right you will see various options for the project.
Under the Output Options, do the following:
Clear Advanced project compression and Compressed compiled
SWF file check boxes.
Under Visual & Sound Effect, do the following:
Increase the Jpeg quality to 100%.
Hope the preceding steps would resolve our problem.