I'll revive economy in 100 days: Manmohan Singh

Manmohan Singh claims that he can revive the Indian economy which is at a downside now even though one of the strongest perceived leader of Congress, one of the most educated, Mr P Chidamberam has been claiming of Indian economy remaining stronger even during the global recession.

However this claim of our revered PM is conditional that he should be voted back to power.

My three questions:

1. He atleast agrees that the by and large unorganised indian economy is under recession. Is he still not in power? And if he needed only 100 days, why did he not do something at least visible to revive it?
2. Only when you will be in power, you would do this magical act and won't probably do something if not. Why? Is this not your duty to revive the economy no matter power or no power, being the known economist you are?
3. And the timing? Can you explain this? Please enlighten all of us.