The home ministry on Monday put all nuclear installations in the country, especially the Bhabha Atomic Research Centre (BARC) in Trombay, on alert.
The decision was taken after intelligence agencies informed the government that Pakistan-based terrorist groups could target the nuclear facilities.
Aimed at Maharashtra and other coastal states — from where terrorists could infiltrate — the advisory comes a month after the Central Industrial Security Force conducted a security audit at the BARC.
“The necessary steps to be taken in light of the audit findings have been shared with the state government and the Centre,” an official said. The fresh alert comes after the arrest of a Pakistani spy at Delhi airport on Saturday and of Lashkar-e-Tayyeba operatives David Headley and Tahawwur Rana in Chicago last month by the FBI.
However, an official said the advisory was not prompted by either of the arrests.