Kaviarasu: We've primarily covered using Ajax in ASP.NET and PHP settings. I think you could relatively easily the Ajax specifics from this book to JSP though is you are already adept with JSP.
If you aren't comfortable trying that, you are welcome to check out this competing book:
Pro Ajax and Java Frameworks
It's not Wrox and I can't state whether or not it's any good but the Amazonr reviews seem OK.
Senior Acquisitions Editor
Wiley Technology Publishing
Jim's Book of the week: No book this week - Donate to the Red Cross!