Dear Sk.Aggarwal,
PMM's answer may be actually incorrect. I had my file transferred to LA recently and there will be NO interview.
NOBODY KNOWS WHY THEY ARE TRANSFERRED, EXCEPT FOR THE PEOPLE WORKING THERE.
I shared my experience in a separate message, and that's it. I shared what I knew and made no assumption that could mislead people.
There is no reason for you to be upset, I just made a comment on the information vehiculated on this board, of which a tremendous amount is coming from so called "seniors", who make up stuff and other naive people believe all that.
Be rational and realize that there is no way that an applicant, even if senior, would know details about how immigration offices work. The most experienced immigration lawyer will not dare to give you that kind of info, because they don't know everything either.
So, I may not have so many postings like a senior...and the reason for that is that I only share my personal experience and what I REALLY KNOW FOR SURE.
People, think twice before believing everything here...
Robert