1. Asia, India--Sri Lanka (Ceylon), Palk Strait and Gulf of Mannar, northern part Yale Public content 1979. 2011-12-12T20:45:12Z. 2015-05-06T18:50:52Z. United States. Defense Mapping Agency. Hydrographic/Topographic Center. The Center. English. Public. Indian Coast (India), Indian Coast (Sri Lanka), Indian Ocean, and Indian Ocean.