Bengaluru Police Commissioner Shankar Bidri said the blasts were of low intensity and gelatin sticks were used.
Preliminary investigations show that the bombs were attached to a timer device and were triggered off by a mobile phone. A similar pattern was used in the Hyderbad twin blasts and also at Jaipur and Ajmer.
While the Intelligence Bureau are not ruling out the hand of the Students Islamic Movement of India behind the blasts, the cops maintain that it is too early to blame anyone.
Image: A police canine scans the parameter of a bomb site.
Also read: A terrorist's stunning revelations
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