New Delhi: The home ministry has warned that the Lashkar-e-Taiba may carry out terror attacks in New Delhi, Kolkata or Hyderabad ahead of Independence Day.

“It’s a matter of concern," said a home ministry official, who declined to be named.

I-Day alert: A 13 September photo of a bomb blast site in New Delhi. In view of the latest threat, advisories have been sent to three states. Harikrishna Katragadda / Mint

The official also said there has been a rise in infiltration by terrorists from across the border in the past few months. “We do not see any indication that Pakistan has... reined in terror elements," the bureaucrat said.

Separately, the home ministry is planning a new policy aimed at stopping the growing incidence of Maoist-related violence across the country. “The strategy will be finalized after the internal security meeting on 17 August, which will be attended by chief ministers and senior police officers," the official said. The chief ministers of the seven states hit by such violence will hold a separate meeting the same day to discuss the issue.

The Central government is considering many proposals, including adding more security forces, upgrading technology and providing armoured vehicles and mine detectors, besides air support to tackle the Naxalite menace.

The official, however, clarified that air support would be used only to carry out reconnaissance operations, evacuation and to move the security forces.