The National Intelligence Agency has registered a case against US national David Headley for allegedly plotting terror attacks in India, as the Government said on Thursday that it had enough evidence to show he had links with Pakistan-based Lashker-e-Taiba(LeT).

Union Home Minister P Chidambaram told reporters that besides Headley, the NIA had also registered a case against his Canadian accomplice Tahawwur Hussain Rana. Headley is at present in custody in the US.

The duo were booked under Unlawful Activites (Prevention) Act and for conspiring to wage war against the country.

Maintaining that Headley had visited India "several times before 26/11 and once after" the Mumbai terror strikes, Chidambaram said "we are conducting investigations in the cities he visited to find out whom he met and what he did."

The Mumbai attack last November left 183 persons dead. In a related development, a top Home Ministry official claimed that the investigators had enough evidence to show Headley's link with LeT and that the Government is all set to produce the documents before the US court in January next and press for their extradition to India.

"We will press for his extradition to India with these evidence," the official said.

Headley had also visited Kochi and Pune besides four other cities, including Delhi, where he had come in 2008, the official said.

The investigators were now trying to find out whether Headley and his accomplice Rana, also arrested in the US, were involved in the 26/11 attacks in Mumbai and whether handlers of the duo and attackers of Mumbai were same.

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