I was interviewed at US embassy New Delhi on sep 13,2012 for immigrant visa. At the end of interview the officer told me that visa is approved and I will get it by courier in couple of days. But its nearly a week, I have not received anything yet, even the vfs tracking is not working for me. Can anyone tell me what went wrong after approval
Thanks
Rajveer

No one here on a question and answer site can tell you about YOUR specific visa.

But a few days is not even realistic, it takes a few days for them to do the paperwork.
So they already have your passport in hand to put the visa in ?