Security sources said that the alert was issued based on an input generated by the Defence Intelligence Agency.
The input was shared with the Multi Agency Centre (MAC) earlier this week following which it was disseminated to the concerned states.
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"The alert is very general in nature but security measures have been enhanced," a senior security official said.
(Only the headline and picture of this report may have been reworked by the Business Standard staff; the rest of the content is auto-generated from a syndicated feed.)
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