High alert has been sounded all across Tamilnadu following the serial blasts in Delhi. The blasts in the national capital last night claimed over 20 lives besides injuring 100. The Tamilnadu police have taken up extensive preventive measures across the State. A round-the-clock vigil has been taken up in Chennai and police conducted vehicular checks last night.

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A team of police led by City Police Commissioner Sekar raided lodges and hotels last night. A total of 408 persons have been taken into preventive custody. Security has been beefed up at Coimbatore, Madurai, Tiruchi, Tuticorin, Vellore, Salem. Police personnel have been deployed at all places of worship including Mylapore Kapaleeswarar temple, Madurai Meenakshi Amman temple, Thanjavur Brahadeeshwarar temple and Nellaiappar temple in Thirunelveli. ‘We are not taking any chance and have increased patrolling’, a senior police official said. Meanwhile, security has been beefed up at the Chennai airport, railway stations and bus stands. Cops have been deployed in large numbers at these exit and entry points. The passengers are allowed to enter these places only after thorough frisking by the cops.