Please mind this is not terrorist hand work. They usually will go with high intensity like RDX and all. The Cong did not like winning of BJP in Karnataka and the Gujarat & also they wanted to defend the BJP's accuse on Congress that the cneter's last 4 years in power did nothing to counter the terrorism. To turn the table against BJP itself- the accuse on no action on terrirism by center the Congress only has done this but with the low internsity bomb. Please note that they have not hung the terrorist Afzal even after the Supreme Court ruled hanging. These two serial bombs took place in capitals of Karnataka and the Gujarat within the six months of the recent elections in these states in which BJP won and happend after the trust vote on Congress interestingly.
