New Delhi, The Government on Wednesday issued an alert warning for four cities of three States along with Delhi over probability of multiple terror attacks.

Ministry of Home Affairs issued the alert for Delhi, Agra, Lucknow (Uttar Pradesh), Ahmedabad (Gujarat), and Mumbai (Maharashtra) following inputs that David C. Headley had visited these cities and inspected various places in these cities.

The alert was issued following David Coleman Headley, the U.S national and a key Lashkar-e-Toiba operative's visits to these cities. The U.S authorities held him recently.

On Tuesday, Home Minister P.Chidambaram confirmed that the key Lashkar-e-Toiba militant David C Headley visited India many a times before the Mumbai terror attack occurred on 26/11 last year.

"He visited India many a times before 26/11. We are investigating probable link between 26/11 and Headley, " P. Chidambaram stated. (ANI)