Surrounded by sea in the Gulf of Mannar, Kariyachalli Island was once huge. That is, Kariyachalli Island was 20.85 hectares in 1969. But in 2018, it shrank to 5.97 hectares. According to experts, Kariyachalli and Kasuwari Islands will sink by 2035. In this situation, the government has taken steps to save Kariyachalli Island.
