Pune: Two of the Improvised Explosive Devices (IEDs) that did not explode in Pune have been sent for forensic examination, Home Secretary RK Singh said on Thursday. He added, "Investigations are still in the preliminary stage. The initial investigation is being done by the NSG post-blast team."
The NIA and the CFSL teams reached the explosion site at 3:30 am, he said, adding, "If planning has happened, that means there is involvement of some group and this is being investigated."
Meanwhile, an FIR was filed at the Deccan Gymkhana Police Station against unknown persons on Thursday.
The Maharashtra ATS is examining the CCTV footage from three of the explosion sites.
Initial probe revealed that ball bearings, an odourless powder, a sticky substance, detonators and circuits were used.
The cycles on which the bombs were installed were also newly purchased.
Picked up bags from IAC protest site: Suspect to police
Dayanand Patil, who is suspected to have carried one of the explosive devices and who was detained for questioning on Wednesday, claimed that he picked up two bags from the India Against Corruption (IAC) protest venue, out of which one later exploded.
The IAC activists were asked to vacate the site on Thursday, following which the unit suspended its agitation for one day.
A well-planned attack?
Sources say the material used in the bombs suggests that it was a well-planned attack. Sources add the operation doesn't appear to be the work of a sleeper cell but of a terror group.
Forensic experts who visited the four sites are closely examining the detonators and ball bearings used in the bombs. The fifth bomb that was defused is also being examined for leads.
Police sources say that the constituents of the diffused bomb are - ball bearings, an odourless powder, a sticky substance which makes it look like a pastry, detonators and circuit.
The owner of the cycles is being traced through the chasis number. Questioning of some of the cycle vendors in the area is being done.
Investigating agencies are also trying to trace the owner of the bicycles found at site. Some cycle vendors are being questioned.
Four blasts rock Pune
Four coordinated low-intensity explosions struck the busy arterial JM road in the heart of Pune on Wednesday night. The explosions occurred at Jangli Maharaj (JM) road at spots near Balgandharva Theatre, Dena Bank branch, a McDonald food outlet and Garware Bridge.
Maharashtra Home Minister RR Patil on Thursday said investigating agencies were probing all angles to determine whether any terror outfit was behind the low intensity serial bomb blasts. "Whether it was a terrorist act or not will be determined only after proper investigations are carried out by Maharashtra ATS, city crime branch and central agencies," Patil told reporters after visiting the four blast sites on JM Road.
Asked whether there could be a "saffron terror" angle to the incident, he said, "All angles are being probed and it will not be proper to comment at this stage."