New Delhi/Hyderabad: Three days after two powerful bombs killed 16 people and injured 117, Prime Minister Manmohan Singh on Sunday visited the sites and called on the injured.

Accompanied by Andhra Pradesh governor ESL Narasimhan and chief minister N Kiran Kumar Reddy, he first stopped at the Anand Tiffin Centre in front of Konark Theatre in Dilsukhnagar.

The chief minister briefed him about the terror attack. He walked up to the scene of the second blast, a few meters away.

Manmohan Singh, who flew into Hyderabad in an Indian Air Force aircraft, later met the injured at two hospitals. He spoke to them and enquired from the doctors about their condition.

At the Yashoda Hospital, the prime minister assured the victims all possible help from the government. "God bless you," he told one of them.

He saw the x-ray of an injured person and spoke to doctors about the nature of his injuries. One of the victims told the prime minister that he was having snacks at a roadside eatery when the first bomb exploded.

"I am here to stand in solidarity with the people of the city. We should maintain peace and calm," Manmohan said in Hyderabad.

"I am happy that the people of Hyderabad have refused to be provoked by this nefarious incident," the PM added.

"I express condolence for the families of the bereaved and wish speedy recovery for the injured," the PM said.

The prime minister avoided road travel apparently due to security reasons.

After landing at the Begumpet airport at 11, he flew in a helicopter to Victoria Memorial School near Dilsukhnagar. He then drove about 2.5 km to reach the first blast site.

After spending an hour visiting the two sites and the hospitals, Manmohan Singh flew back to the Begumpet airport.

Two bombs exploded within a span of minutes in Hyderabad on Thursday evening, killing 16 people and injuring 117.

'Vital clues' from CCTV footage in blast case
Meanwhile, investigators on Saturday claimed to have got "vital clues" in the probe into the twin blasts in the city and were examining CCTV footage with the needle of suspicion zeroing in on banned militant outfit Indian Mujahideen (IM).

Police also announced Rs 10 lakh award for information leading to the perpetrators of Thursday's serial blasts that left 16 dead and 117 injured.

"We have already gathered vital clues in the case. We are confident we will crack the case soon," Andhra Pradesh home minister P Sabita Indra Reddy said after a high-level review meeting chaired by chief minister Kiran Kumar Reddy.

The modus operandi adopted by the perpetrators like ammonium nitrate and splinters-laden aluminium containers fitted to bicycles used in the blasts were similar to the attacks carried out by Indian Mujahideen.

Without going into details, Hyderabad commissioner of police Anurag Sharma said, "We have some evidence, some clues".

"We have footage from the camera (at the blast site) which we are analysing it," he said while refuting media reports that CCTV wires had been cut by the terrorists before their operation.

He, however, admitted that out of 303 CCTVs in the city, 38 were not functioning.

The police commissioner said they had received an alert from Delhi on February 15 about possible strikes in Hyderabad and three other cities. "We did not take any warning lightly".

Asked about reports of arrests and detentions, he said, "We have not arrested anyone in this case. We are examining all types of evidences."

Asked about the involvement of IM, he said the investigations were underway. "Unless we complete the process, we cannot jump to any conclusion."

He said ammonium nitrate was used in the IEDs which had timers.

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