First of all thanks to PMzilla for the Lessons Learned section and resources. 

Lessons Learned:

 -- Don't take the mock exams right before real PMP exam. Though my scores were between 65-80% through out my preparation, I took couple of mock exams the day before exam. I got scores 50% and less. That triggered the panic if I am going to pass the exam at all. I felt I knew all the nuts and bolts for exam. So, I went with my insticts and guts any way and didn't even looked for postpone as an option.