Sonal,
From past experience I can tell you that the words "aggressive timeline" and "pass the PMP exam" don't work well together. In order to pass the exam you need a "sensible timeline", you need to set aside lots of time for studying and you need to be able to focus.
My recommendation: Don't rush it.
Take a look at these 8 free videos on YouTube that will give you an idea of everything you need to do in order to properly prepare:
www.project-management-prepcast.com/8videos