There have been at least 13 major terror strikes, starting from the attempt to storm the disputed structure in Ayodhya in July 2005, in his tenure. In none of these incidents, which includes such deadly attacks as the one on the local trains in Mumbai in 2006 and at a busy market place in Delhi in 2005, has any perpetrator been brought to justice.

Before meeting the Prime Minister, Patil met senior officials at his residence where information that had so far emerged from the two incidents was analysed as well as preventive measures that needed to be taken.

Details emerging from investigations in the Bangalore blasts suggest that the terror groups are aiming to maximise the damage. Sources said about 2 kg of ammonium nitrate was used in each of the explosives in Bangalore, while an unexploded device was found in a cement casing. This was done probably to intensify the explosions, though ironically they may have helped reduce the impact.

The use of circuit boards in the blasts in Bangalore, unlike timer devices, also indicated that the terrorists were trying to innovate and keep the investigators confused.