The Maharashtra police had announced a probe was under way to establish the cause of the explosion, while a Central Bureau of Investigation team was sent from New Delhi to Pune to assist in the investigations. Consequently the entire country was put on high alert, especially Mumbai and Hyderabad. After a detailed review of the internal security situation in the wake of the attack, Prime Minister Manmohan Singh directed the Union and Maharashtra governments to take coordinated and effective action to speedily investigate the terror attack. Hindu nationalist leaders blamed the attack on Pakistan and demanded the government call off the inter-ministerial talks, scheduled for Feb. 25 in New Delhi.

Investigation
Repercussions
Hypotheses about the perpetrators and motives
Location and time