Phanikumar,
Your compliment is extra special, as I am working on clarity and it is important to me. I try to make my communication (written, verbal) as clear as possible.
In the pursuit of clarity - outward (to others) and inwards (thoughts, ideas etc.) I have written few articles. These might be interesting
http://scn.sap.com/community/career-center/blog/2014/11/19/success-in-interviews--part-2-essentials
http://scn.sap.com/community/career-center/blog/2015/07/28/success-in-sap-sd--business-process
TW