The latest is that the Deccan Mujahideen has claimed responsiblity .
THEY ARE A NEW GROUP !
Thank you Indian Fighter Kite.
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http://www.youtube.com/results?search_query=Indian+mujahideen&search_sort=video_date_uploaded
http://www.youtube.com/results?search_query=Indian+mujahideen&search_type=&aq=f
Al Qaeda ALWAYS invents a new group to take responsibility. AQ NEVER has openly taken responsibility, not until months or years or later, to the best of my knowlege.
Assume AQ, assume multiple simultaneaus attacks, assume follow-on attacks aimed at first responders, until hard facts say otherwise.