The first two blasts occurred at Adugodi at 1330 hours behind the famous Forum Mall, which is a major shopping destination in Bengaluru.
The second bomb was placed near a granite factory under some granite slabs.
The blast at Madiwala occured near the check post at 1350 hours, which were followed by a blast at Nayandahalli in a bus shelter at 1410 hours.
Image: Sleuths scan a bomb-site for explosive residue.
Also see: The cop who warned of attack on Bangalore