We went to Banglore to meet are relatives 3 years back.Went by train which took a long time.
The city is beutiful and looks well planned.I saw a lot of mnc( Multi National Corporation) headquarters which were humongous and sky rocketing.
We went to the science park were we could experience some amazing gadgets and gizmos and it was the time when I first saw 3D in its inception .
The problem is that the city has nothing significant from tourusm point of view.There are no historical places or any museums for visiting.
So my suggestion is that just use Banglore as a starting point for various places to visit such as kodaikanal and ooti.