You'll get the top places to visit n all from a simple Google search. I would recommend aimless city walls.
Five major areas:
- Basavngudi & Jaynagar- Old Bangalore
- Indiranagar - Tech Bangalore
- MG road - Posh Bangalore
- Chicpet/Market. Ultra old Bangalore
- Shivajinagar. Must visit coz ramzan time
Walk around aimlessly. Do whatever. Eat dose at random restaurants. Buy books.
And checkout lakes and parks on the map. Anywhere you go a lake or park should be nearby. Green Bangalore is a true statement.
You might find some random office folks out for tea on indiranagar. Say hello if you like.
I find exploring a city like this is much better than touristifying completely