“The police control room received a telephone call from an anonymous caller who said there is a bomb in the village,” spokesman Rajan Bhagat said.
He declined to say how credible the threat was but explained that no-one had been evacuated.
"An anti-sabotage operation is currently on in the village," the official said, adding that explosives experts were checking the sprawling facility.
The fenced-off village is guarded by hundreds of troopers and policemen and unauthorised entry is banned.
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