NEW DELHI: Suicide attackers sneak in; Delhi, Mumbai on high alert, Kolkata, Mumbai and the national capital, besides Gujarat, have been put on high alert following intelligence inputs that Taliban-trained terrorists have sneaked into these cities to target vital installations.

A top Union Home Ministry official today said that Taliban-trained ‘fidayeen’ (suicide squad) have entered the country to carry out attacks at “specific” installations, including Bhaba Atomic Research Centre, defence establishments among others.

Bombay Stock Exchange, Headquarters are also among the likely targets of the “Pashtoon-looking” terrorists, the official said adding that instructions have been issued to lay a tighten security net around these installations.

He said the police forces have been put on high alert following the inputs and efforts are on to nab the terrorists at the earliest.