Hi Mayura,
the Agile PrepCast and Mike's book is really enough to pass the exam.
Please read also my lessons learned about the preperation and the exam itself:
www.project-management-prepcast.com/inde...with-prometric-issue
I would recommend that you save the money for more books and spent it later on exam simulators.
Again with the Agile PrepCast and Mike's book you have enough knowledge because they are written
to save your time in a way that you don't have to read all PMI recommended books which are listed here:
www.pmi.org/Certification/~/media/Files/...nsightsAIGLE418.ashx
Kind Regards
Sven