1311Sri Lanka - IndiaTreaty21952195Sri LankaSri Lanka2128India2128India8346Sri Lankan Exclusive Economic Zone8480Indian Exclusive Economic ZoneSupplementary Agreement between Sri Lanka and India on the Extension of the Maritime Boundary between the two Countries in the Gulf of Mannar from Position 13 m to the Trijunction Point between Sri Lanka, India and Maldives (Point T) 22 November 1976https://www.marineregions.org/documents/LKA-IND1976TP.PDFDatabase1976-11-22Z28.785 77.17666667 4.79 77.02333333