India, April 5 -- Amid Prime Minister Narendra Modi's state visit to Sri Lanka, the Katchatheevu island issue has once again taken centre stage, with Opposition parties, including the Congress and DMK, pressing the government to address it.

Tamil Nadu chief minister MK Stalin wrote to the Prime Minister on Thursday, calling for the retrieval of the island that was handed over to Sri Lanka through agreements signed in 1974 and 1976.

Congress MP Pramod Tiwari on Saturday said the Katchatheevu island matter has become a serious concern for Indian citizens and fishermen, adding that PM Modi "should raise this issue firmly".

The Tamil Nadu assembly passed a resolution on April 2, seeking the retrieval of the island to safeguard the traditio...