For \'never\'...
Hello,
Surprisingly, NVC has not received my file from VSC. But my AC140 case was created at Mumbai. I doubt if NVC will ever create a case before my interview.
In any way, even if NVC creates a case and sends it to US consulate in Mumbai, I bet the consulate has a way to reconcile the two cases, if both are open. And I also feel comfortable with consulate management that they will honour the first case, which in my case is AC140.
But till you are at the consulate doorstep on your interview day, nothing is confirmed. Infact, till the rude guards at the consulate let you in, keep your fingers crossed. I guess one must feat these guards more than the actual interview, hahaha. I had a little verbal argument last time when a guard spoke rudely to an elderly person standing few places ahead of me in line - since 5 am, I guess.