"Security around all the airports have been strengthened and we have taken all the measures that are required in the wake of the alert from intelligence agencies," official sources said here today.
All anti-hijacking measures have been put in place, they said, adding that passengers' checking has also been beefed up at some of the major airports, including Indira Gandhi International Airport here.
The airport staff has been asked to carry out checking of the cabin baggage once the boarding is competed and even the airport staff is being thoroughly checked by the airport security personnel, they said.