The Maharashtra ATS was reported to have sought a list of passengers traveling from Kolkata to Mumbai and Kolkata to Kanpur from the Kolkata Police . The suspicions were a result of a Kolkata man with Indian Mujahideen link having gone missing in the previous few days . A NIA team visited Ahmedabad on 15 July 2011 to meet an Indian Mujahideen suspect who was arrested by the Crime Branch in connection with the 2008 Ahmedabad bombings . On 16 July , Maharashtra ATS Chief Rakesh Maria said that , based on forensic opinion and visit to the various sites , the possibility of a suicide bomber was being ruled out . However , a sketch of a possible suspect based on CCTV footage from one of the blast sites was being prepared . He added that in light of the sensitive nature of the investigation , the entire detail of the probe could not be revealed at that particular stage
2008 Ahmedabad bombings
2008 Ahmedabad bombings
2011 Mumbai bombings