Nuclear establishments in the country have been put on high alert after intelligence inputs have warned of a possible terror threat.

The intercepts come in the wake of investigations into the Headley-Rana case. Highly placed sources told rediff.com that sensitive nuclear installations in Maharashtra [ Images ] and Gujarat could come under attack.

The Centre has alerted the respective state governments to beef up security in such establishments. Investigations have revealed Headley had conducted a survey -- besides taking a video footage -- around the highly protected areas.  Headley, it is said, travelled to the Bhabha Atomic Research Centre in Trombay near Mumbai [ Images ] and the Kakrapar plant.

The police also found maps of vital installations with a Pakistani person who was arrested in New Delhi [ Images ] on Sunday.