221g processing time for h1b during stamping??

Hi All,

I went for VISA revalidation interview in Chennai consulate on 14th of Oct 2014. My employer told that I wont be needing Client Letter. In the interview first thing they asked was Client Letter and gave me 221(g) form. I asked my employer to give me a client letter and after 2 weeks finally i got the Client letter.

I submitted the Client letter through drop box in Chennai consulate 4 days ago. My status still shows admin processing and its not updated as last date updates is 14th Oct.

I know there is no time frame for 221g processing, but does anyone has any idea on an average how many weeks it may take for processing or anyone of you has got 221g processed in 2 or 3 weeks?