Sain so in the e-mail in which you got your file number does it say that AINP received your application in March or in Jan???. As for me it clearly states in my e-mail in which I got my file number that my application reached on Jan 27th 2009
The lady i spoke with has my application receipt month in the system as March 2009. My undertstading was that the application received by them on 19th Jan 2009 (I used fedex and have confirmation info etc).
I sent them an email in May 2009 asking about my case number, and they sent me number with following message:
"Here is your file reference number xx- xxxx. It was emailed to you on March 03, 2009.
Please review the processing times as listed below. ................."
I asked the lady to connect me to the manager or higher up, who is involved in my case: she denied to do so.
I am quite sure that your case is safe and you will get approval sometime soon.
babuganesh's case has been an example for me, whose application reached before 19th Feb but case denied becasue file number was created after 19th Feb. I don't know who else in this forum has similar case as mine/babuganesh.