Prime minister Modi charged the congress of "weakening" the nation's integrity and interests on Sunday, in addition to criticising the party for ceding the island to Sri Lanka.
His comments were in reaction to a Right To Information (RTI) investigation that exposed the 1974 transfer of Katchatheevu from the congress administration, which was led by then-prime minister Indira Gandhi, to Sri Lanka.
On Monday, the DMK and congress were lambasted by External Affairs minister S jaishankar for their handling of the Katchatheevu island dispute, stating that they "have approached this matter as though they have no responsibility for it".
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