"The National Security Agency officials visited the apartment in Attavar region of Mangalore and recovered explosives, mobile, sim cards and a bike used by Bhatkal and his aide, who had lived there for brief period," V Sunil Kumar said in the Assembly during its Winter session here.
"Consequently, police has hardly done anything in the matter," Kumar said.
Bhatkal was arrested in August near the Indo-Nepal border in north Bihar.
"Why haven't the police acted? Why is it silent? The government should act," Kumar said.
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He said the fact that Bhatkal and his aide stayed in the apartment suggests that they had local support and it is a conpiracy to "protect" terrorists active in the country.
Kumar alleged that the government had no information about terrorist activities in the IM module in Mangalore.
In his reply, Home Minister K J George said as the case is being investigated by NIA, Karnataka police does not have any role to play.
However, the government will book a case in this regard if NIA directs it to do after completion of their investigation, George said.