The West Bengal Governor said that perhaps for the first time in the history of terrorism worldwide, terrorist networks are currently "seeking to hold territory rather than merely attacking high profile and soft targets".
He also said that several new terror outfits are experimenting with "hitherto unknown methods and techniques" and some of those which have emerged, "rival" the al-Qaeda and Lashkar-e-Taiba in their "capacity to unleash violence".
"The Karachi Project, as this is known, has spawned quite a few modules dotted across different parts of the country's landscape, which have carried out a string of successful terrorist attacks," he said addressing the first Radha Vinod Raju memorial lecture organised on the occasion of National Investigation Agency day here.
Referring to the Mumbai terror attack, he said the 26/11 attack was entirely an LeT operation, backed by the Inter Service Intelligence of Pakistan. Actual monitoring and control was done by senior functionaries of the LeT, including Zakiur Rahman Lakhvi, Abu Hamza, Yusuf alias Muzammil, working under instructions from LeT operative Sajid Mir.
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"It would be a grievous error if a decline in the number of terrorist incidents across India in the past two years, is touted as evidence of terrorism being effectively checked," he said.
A similar decline in certain theatres of persistent violence, such as Jammu and Kashmir and the North East, but there is a significant difference between the two situations.
He said several new terror outfits are experimenting with new methods and techniques.
Narayanan said what was common among the groups is their reliance on advanced technology, which has made a critical difference to their "lethal and destructive capabilities".