This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
Gaurav, I think you are in right direction. From Mastering EJB read 12 chapters not just 8. Exceptions are not covered in Mastering EJB so read them from Mikalais notes or from EJB spec. After reading all these, still if you find time try revising ejb specifications.