The project envisages dredging of a shipping channel across the Palk Straits between India and Sri Lanka.
Campaigning for Anwar Raja, AIADMK candidate from Ramanathapuram constituency, Jayalalithaa wondered why the DMK was so keen to implement such a project.
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She said the project would affect the marine wealth in the sea including traditional fish population and coral reefs that helped in breeding fish. Besides,it would affect the livelihood of the fishermen, she said.
"AIADMK is opposing the project because the fishermen are against it," Jayalalithaa said. Besides big ships could not pass through the Sethusamudram channel, she claimed.
Even the State-owned Poompuhar shipping corporation ships, carrying 30 per cent of the coal requirement of thermal power stations of Tamil Nadu would not be able to pass through the channel, she said.
Even for small ships to pass through, the channel should be dredged frequently and recurring expenditure would be heavy she said, opposing the project.
AIADMK was planning schemes for people but DMK was planning schemes with self-interest, she alleged.