'There is a continuing threat from terrorism throughout India and the upcoming series of major holidays (including the August 15 Independence Day celebration) could provide terrorist groups an opportunity or pretext to stage an attack,' the advisory said.

'The November 2008 attacks in Mumbai provided a vivid reminder that luxury hotels are especially attractive targets for terrorist groups,' the advisory added.

Home Minister P. Chidambaram has called an internal security meeting of all chief ministers Aug 17 to address the growing incidence of Maoist violence and formulate a counter-offensive against the rebels.

--Indo-Asain News Service

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