uscis action notice
in my case, DOS sent favorable recommendation on August 3rd. USCIS processed the case and sent notice of approval of waiver on August 13th and I got it on August 21st.
I am from chennai, India and my time lime in getting the waiver
March 2007 - sent the documents to my parents who in turn mailed it/ submitted it to the authorities in Delhi, Regional passport office in chennai and secretariat (home dept of state - tamil nadu)
April 2007 - regional passport office, chennai sent the clearance to indian consulate in new york. i did not know about this till june 2007 when i followed up a few times with the indian consulate in new york.
May 2007 - got clearance from MHRD, delhi
June 2007 - got clearance from home dept of state
June 2007 - mailed my clearances (only the two i had from Delhi and home dept of state) to indian consulate in nyc
July 2007 - indian consulate mailed the NORI to indian embassy and they forwarded it to DOS
July 2007 - filled the DOS forms online and sent documents, fee etc. my case appeared on the DOS site within 10 days
August 2007 - First week of August 2007, DOS updates the site saying they received clearance from indian embassy.
August 2007 - within 3 days they mail out the letter to USCIS
August 2007 - in 10 days, USCIS approves the petition and sends I-797 approval notice
Finally on August 21st I get the approval notice! it took me more than 6 months to get it.