The Bangalore Police,in conjunction with multiple agencies including the Tamil Nadu Police,have zeroed in on a Tamil Nadu-based terror module as the perpetrators of the April 17 blast near the BJP office involving an improvised explosive device placed on a motorcycle,and are likely to announce arrests in a few days.
Senior officials close to the investigation said the blast involved a group not linked in recent times to terrorist activities in southern India.
We want to be sure about the group affiliations of the people involved before announcing the results of the investigations. We had very strong leads and that took us to the perpetrators, said a senior police officer.
The crucial leads in the investigation were the chassis number and engine number of the TVS Suzuki Max 100 R motorcycle that was used to plant the explosive device around 50 metres from the BJPs central office in Bangalore,and a set of fake identities used to purchase SIM cards by people involved in transactions to buy the 1995 model motorcycle.
Though the registration number,TN 22 R 3769,turned out to actually belong to a Yamaha RX 135 motorcycle,the chassis number,1108F001568,and engine number,1108M05647,led the police through the vehicle manufacturer to its first owner,R Prakash,a resident of New Perungaulthur near Chennai. From Prakash,the police traced the second buyer who had identified himself as Anwar Basha but allegedly used fake identity proof.
Police investigations of the call details of a mobile SIM card used by Basha and those associated with him found that the persons communicating with Basha were also using SIM cards bought with fake identities.
We are sure we are on the right track in identifying the people involved and should be in a position to reveal results soon, said an officer.
Officials also pointed to similarities to the blasts in Mumbai in July 2011,Pune in August 2012,and Hyderabad in February this year.
There were many similarities between the recent blast and others in the past. One is that the trigger switches for the IEDs are placed with the explosives which leads to its destruction. The use of second-hand vehicles to plant the bombs is also a common thread, said sources.
The similarities suggest the functioning of a loose group of people with some sort of common training knowledge,added the sources.
Officials said though the Tamil Nadu module had been identified as responsible for the April 17 blast,where they obtained the wherewithal to construct bombs and plan attacks is still being investigated.
Earlier,the fact that the Bangalore blast occurred on the same date as the Chinnaswamy Stadium blasts in 2010 was seen as an indication of the involvement of the Indian Mujahideen. But sources involved in the investigation said linkages with the IM group had not been established.