Security has been stepped up in five major temples in Tamil Nadu following an intelligence alert of terror attacks.

The Meenakshi Temple [Images] in Madurai [Images], Ramanathaswamy Temple in Rameswaram, Murugan temple in Palani, Kapaleeswarar Temple in Chennai and Sri Ranganathar Temple in Srirangam in Tiruchirappalli have come under a heightened security, following intelligence inputs that they could be the target of some banned organisations, waiting to expand their trail across the country after the Delhi [Images] blasts.

Delhi Blasts

Highly-placed officials told PTI that the move was taken at a review meeting held in Chennai on Wednesday, headed by Chief Minister M Karunanidhi.

Security had also been beefed up at the office of Tamil daily Dinamalar following intelligence reports that the  ewspaper might also be one of the terror targets, they said.

The daily faced protests from Muslim groups recently after it carried a cartoon of Prophet Mohammed.

'We have busted 400 terror modules'

Besides these temples, commercial hubs in Chennai and elsewhere have also been placed under surveillance.

However, officials are wary about security arrangements in the temples, as they want the Hindu Religious and Charitable Endowments department that administers temples, to be more proactive and forthcoming in ensuring fool-proof security.

The state police headquarters had ordered the district administrations to tighten up the security arrangements.

Why terrorists attack soft targets

The police was keeping a close watch across the state to look for sleeper cells of the banned Students Islamic Movement of India or the Indian Mujahideen [Images], a senior police official said.

"There is no specific information as regards sleeper cells," Rajendran said, adding that the police were still going ahead with security drills and other preventive measures.

Mumbai cops arrest 5 for Ahmedabad blasts