I would request everyone, who were interviewed at Mumbai consulate and got 221g yellow, to please update this thread with their case detail and timelines.
Given below are my case details
Case : went to India on 2 weeks vacation, H1 and H4 extension
Interview Date : 29th Feb, 2012
Interview Details : simple 3-4 questions, manager name, client name,
employees (of my employer) count at client place, marriage date etc
Result : 221g Yellow with no documents asked
My wife's case number appeared in pdf after 2 weeks.
Its been 4 months, no communication received from Consulate on my case.
Meanwhile I tried to contact VFS few times via email and got the response that case is still pending administrative processing.