Believe it or not

I have no idea if somebody had noticed it before or not, but triggered by a question (asked in a trader website) I analyse further?

Question was: Why Nifty bounce back from 3918.75 on July second week of 2009?

It was easy to answer as I had already posted similar to this fact. But it left me wondering, why Nifty bounce back in March 2009 from 2540.00?

It was taking support at 400 MA on weekly chart.................!!

Is not it amazing ........... !!