Jundal, the 26/11 handler who is in jail in Mumbai, was deported to India by the Saudi authorities in June as part of enhanced intelligence and security related cooperation between two countries.
The sources said Menon also warned the police top brass to keep a close watch on the activities of neighbouring countries.
The NSA also asked the police and intelligence officials to remain vigilant about the security of the critical infrastructure of the country, they said.
Sources said the NSA while referring to the recent attack on the nuclear establishment in Pakistan by the jihadi elements spoke of the need for the security and police agencies to remain vigilant about any such threat to the security of the critical infrastructure.
The sources said Menon expressed concern over the poor monitoring of activities in Myanmar. The ethnic clashes there led to killing of people which created a huge international uproar and was in the media domain for over 15 days before the Indian authorities started tracking them.
Sources said the NSA wanted secrecy to be maintained at all levels in handling cases of international terrorism as the acts have "dangerous propensity of international embarrassment".
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