Hyderabad: A blame game over intelligence inputs erupted on after the twin bomb blasts here as the role of banned militant outfit Indian Mujahideen was being increasingly suspected by probe agencies who got some "leads". The death toll in the blasts in a crowded area at Dilsukhnagar on Thursday night rose to 16 with the number of injured being put at 117 even as the multi-agency investigative teams combed the blast sites at Dilsukhnagar rocked by near simultaneous explosions.
All but one of the dead were men. Eight CCTVs installed in the area were of no use for the investigators pinning hopes on them for evidence as they malfunctioned. Union home ministry sources denied that the CCTV wires were snapped by the perpetrators of the attack. Forensic experts who collected evidence from the blasts site submitted a preliminary report indicating that ammonium nitrate were used in the bombs, which were planted in tiffin boxes and fitted to two bicycles, police sources said.
"This is an explosive mix in which aluminum sharpeners were added to nails and iron pieces used to create more impact," a forensic expert noted. Investigators were also looking for a timer device. Cyberabad Police commissioner Dwaraka Tirumala Rao said they had gathered enough clues about those involved but added the information could not be divulged.
He denied having "detained" anyone in connection with the case. Nothing has been officially said but the accusing finger in the case is being pointed towards the IM that has an "established network" in Hyderabad.
The modus operandi in strapping improvized explosive device (IED) to bicycles was similar to blasts triggered by IM in the past. Hyderabad along with Bangalore, Coimbatore and Hubli were specifically alerted by the central security agencies about possible attacks by Pakistan-based terrorist groups to avenge the hanging of Mumbai attack convict Ajmal Kasab and Parliament attack convict Afzal Guru.
Apart from a general advisory sent to all states on February 19, Union home ministry officials said the specific information about possible attacks was shared with authorities in the four cities on Thursday morning. Home minister Sushilkumar Shinde said all states were alerted about a possible terror strike by militant groups.
However, Andhra Pradesh chief minister Kiran Kumar Reddy had said those were general alerts which often keep coming from the Centre. It has also emerged that two of the alleged IM operatives arrested by Delhi Police for their involvement in Pune blasts last year did a recce of Dilsukhnagar on a motorcycle in July 2012.