"I want to share something very sensitive with you. Last year in my own state of Bihar, Prime Minister (Narendra Modi) then was the Chief Minister of Gujarat and holding a rally. Some terrorist tried to disrupt it," Prasad said at a cyber security event organised by The Observer Research Foundation and industry body Ficci.
He recalled that a pen drive from a terrorist, who died while handling the bomb, was confiscated by police.
The National Investigation Agency (NIA) filed a charge sheet against 10 people, including alleged activist of banned SIMI group Hyder Ali in the matter.