Hi,
I didn’t asked for remote help. I was asking for suggestion/guidance only. I am using this site since from 2012, if I found reply helpful, I will certainly mark it as answer. But generally, if we mark any reply as answer admin may change the question status to solved, then we cannot post further replies in that same question.
However this issue has been resolved, I didn’t observed carefully in the DOM Explorer. The problem was, HTML editor in the content page was overlapping the images of master page, thereby its throwing the exception. Thanks for all your help.
Best Regards
Ali