More than 500 people belonging to the fishing community besides Marumalarchi Dravida Munnetra Kazagham (MDMK) volunteers took part in the protest led by Vaiko.
Slogans were raised asking the Centre to act against the proposed Sri lankan move.
"Lives of fishermen would be destroyed if the Sri Lankan legislation is enacted. They will have to pay fines up to Rs 7 crore," the MDMK supremo said during the demonstration.
In a meeting with Prime Minister Narendra Modi yesterday in New Delhi, MDMK chief urged him to use diplomatic channels to ensure the Sri Lankan government does not add tough penal provisions to a 1979 law that could affect the lives of Tamil fishermen crossing maritime borders.
The Sri Lankan government is mulling imposing fines as high as 150 million rupees on Indian fishermen poaching in the country's waters, a senior Sri Lanka government official had said recently.
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