Explanation: CSC is a regional security grouping initially known as the Trilateral for Maritime Security Cooperation.

• India, Sri Lanka, and the Maldives were part of trilateral maritime security collaboration, while Mauritius joined at 5th meeting of grouping in Male in 2022.
• Observer status – Bangladesh and Seychelles, now they have received invitations to become active participants in the group.

Source: FORUMIAS