"There is a possibility," said Minister of State for Home Kiren Rijiju, on whether men - said to be members of the Students Islamic Movement of India -could have been involved in the blast that is being probed by National Investigation Agency (NIA) and city police from "all angles."
Police announced a reward of Rs 10 lakh for providing information about the person who planted the bomb outside the restaurant in central business district, that sees New Year revelry at its peak in the city, bringing back terror to the country's IT hub for the fifth time in nearly a decade.
As investigators  sewed up clues on the Improvised Explosive Device (IED) triggered explosion, the NIA began assisting the city police which sent out teams to Chennai and Pune where the bomb blasts had occurred in the past.
After taking stock of the security situation at a high-level meeting, Chief Minister Siddaramaiah said, "all angles" were being looked into the blast, which the Centre viewed as a "terror attack"
"As you are aware, recently a few people belonging to SIMI had escaped from a jail in Madhya Pradesh and we have information that they had visited Karnataka, so police is looking at that angle also," Siddaramaiah told reporters.
Siddaramaiah said NIA and other central agencies were here and "we will keep constant contact with them and will seek all those assistance required, but investigation will be done by our police in coordination with them."
In Delhi, Rijiju told reporters, "It was a terror attack."
The blast turned holiday into tragedy for the 38-year-old visitor from Chennai, Bhavani as she was struck by shrapnels from the IED placed in a potted plant along the compound wall of the restaurant on Church Street last night and succumbed to injuries shortly thereafter at a hospital.
All the three others injured, including a relative of Bhavani, were out of danger "totally", Siddaramaiah said.

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