"Both the units of the Kalpakkam nuclear power plant are safe. There is no danger of any radiation," India's national security advisor J.N. Dixit told reporters in the capital, New Delhi, after a meeting of top atomic energy officials.

Prime Minister Manmohan Singh had convened the meeting in the wake of fears that the tsunami hitting the nuclear power plant Sunday could have damaged the plant.

Authorities said on Sunday they shut down the Indira Gandhi Atomic Energy Centre in Kalpakkam, 80 kilometres (50 miles) south of Tamil Nadu capital, Madras, as a precaution.

Water seeped into the facility located on the coast after the tsunami hit following the earthquake, officials said.

A senior scientist said Sunday one unit of the nuclear power plant had been "shut down safely and cooled down."

The private NDTV news channel said 1,500 families in the Kalpakkam township of Tamil Nadu was evacuated by government relief agencies.

There are 2,290 scientists and engineers working at the nuclear power facility in Kalpakkam.

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