here is my timeline for Ottawa office:
We received your application for Canadian citizenship (grant of citizenship) on February, 2011.
We sent you a letter acknowledging receipt of your application(s), and a study book called Discover Canada on February 2011.
We started processing your application on November, 2011.
Your file was transferred to the Ottawa CIC office on November, 2011.
We sent you a notice on January, 2012 to appear and write the citizenship test on February 2012.
We sent you a notice on April, 2012 to appear and take the oath of citizenship at the citizenship ceremony to be held on April, 2012.