Investigators believe that Indian Mujahideen is one of many groups composed of lower-tier SIMI members. According to the Indian Intelligence Bureau, SIMI took new titles because the top leadership of SIMI have been detained and would be available for interrogation.[10] The change in names is believed to signal a change in tactics as SIMI-affiliated militants attempt to garner more support from India's Muslim community rather than be seen as a group consisting of foreigners.[11] Two days after the 13 May 2008 Jaipur bombings, the extremist group[12] sent an e-mail to Indian media in which they claimed responsibility for the attacks[13] and said they would "demolish the faiths (all religions apart from Islam) of the infidels of India."[14] The biggest and boldest attack to date by the group was the 2008 Ahmedabad serial blasts, where it gained national notoriety with a casualty count towards 50.