Which are the best 3 Android applications for business?

Heloo friends,
I am using 4.2 android and as well as bieng a business man I need to know what all is going out in the market and stockexchanges.
All about NIFTY, BSE as well as NYSE these are things I have to be updated. Now I want that not to waste my time in newspapers and magezines I can get these updates on phone itself.
Please mention the best applications that are available that would have a fast interface for business purposes, like organizers, planners etc.
Please also mention any other applications that might be similar and helpful.