But the investigation appears to be floundering while officers are shielding themselves behind excuses for the lack of headway in the probe.
In fact, it's virtually the same story. Be it Hyderabad, Malegaon, Varanasi or Jaipur, soon after the terror attacks, our leaders don't hesitate to promise that the culprits will not get away.
But soon the track turns cold, and as public gaze moves away from the attacks, the search for the killers slackens for a variety of reasons.
Jaipur police officers say they're doing their best. More than 8,000 people have been questioned, including thousands overseas questioned over phone.
The cops suspect the killers may be among them. Sleuths, armed with clues gathered from the blast site on the day of the attacks, say they are quite close to the perpetrators but a breakthrough may not happen very soon.
Initially, Rajasthan police came in for praise. They had quickly and efficiently sifted through the blast sites in the busy Walled City area.
A few of the cycles loaded with bombs had been analysed swiftly and links drawn to the Bangladesh-based HuJI and parallels to last year's terror attacks in court premises of Faizabad, Varanasi and Lucknow.
Jaipur blasts: HuJI role not a certainty
"Clues gathered from an unexploded device have given specific leads and have proved to be quite helpful in the investigation," a source had said, expressing optimism that Jaipur may be the first terror case to be cracked.
But as days have passed, suspect sketches, clues and leads once touted as vital have proved worthless and loudly proclaimed theories proved thin.
Rajasthan police went on a manhunt in the city's shanties where Bangladeshi immigrants are holed up. They came back empty-handed.
Information received from different cities on suspects matching the sketches released by Jaipur police have yielded little.
"All alerts proved to be false on cross-verification," confessed an officer close to the investigation. Even the Bharatpur cleric who was held earlier in a fake passport case and for having received money from some Middle East countries had nothing to do with the Jaipur blasts and was "altogether a different chase", said an officer.
Investigators aren't ready to name HuJI as a definite suspect any more and only say its role and that of some Pakistan-based terror outfits have not been ruled out. Sources in New Delhi said that during the Indo-Pak joint anti-terrorism mechanism meeting held in Islamabad on Tuesday, India had sought information on a few suspects believed to have played a role in the Jaipur blasts.
Rajasthan officers say they are being unfairly blamed for floundering. "The Hyderabad's Mecca Masjid blast is being probed by CBI. It's almost a year now and nothing concrete has been traced," says additional director general of police in charge of intelligence, A K Jain, who heads the special investigation team probing the blasts.
"I reiterate that the investigation will take some time but I am not able to give any time frame." V S Singh, principal secretary (home), defends his police officers. "It's not safe to divulge any information," he says.
Investigators are working in coordination with the special task forces of Andhra Pradesh, Maharashtra and UP as similarities of the Jaipur blasts with the previous terror attacks have emerged. Forensic teams from Hyderabad and Mumbai had examined the evidence gathered from the blast spots in the Pink City.
Sure it hasn't been easy. To mislead investigators, bombers had predictably given false addresses and names while purchasing the cycles.
All of them mentioned Hindu names and Jaipur addresses. Probe official say 20-25 people were involved in the operation — from procuring bomb material to putting them together and buying cycles and planting the bombs and triggering the blasts.
All they know for sure is the bombs in Jaipur and Hyderabad had striking similarities. Shrapnel was fixed on the outer curves of a wooden piece and between them, explosives containing ammonium nitrate were packed using black tapes.
As already mentioned, Samay brand watches, like in the case of Hyderabad, were used as timers to detonate the bombs. A wooden piece recovered from a defused cycle bomb in Jaipur was similar to one found in the explosive device used at the Gokul Chat Bhandar blasts in Hyderabad last year.
More than this, the police isn't saying. Many wonder if they have anything more to say.
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