Hi Madhavi,
you will be able to find many tips and lessons learned about the online proctored mode for the PMP exam in the Lessons Learned section of this forum.
A few recommendations from my side are: set-up the workplace according to the PMI and PearsonVUE requirements, ensure a quiet environment, and practice with the whiteboard, so that you will be familiar with it, should you need to use it during the real exam.
You can find additional details and tips on the post I shared about my experience with the exam:
www.project-management-prepcast.com/kune...nline-proctored-mode
Hope this helps,
Gabriella