Explanation:

• The Gulf of Mannar is a large shallow bay forming part of the Laccadive Sea in the Indian Ocean. It lies between the west coast of Sri Lanka and the south-eastern tip of India, in the Coromandel Coast region.
• The chain of low islands and reefs known as Ramsethu (or Adam’s Bridge) which includes Mannar Island, separates the Gulf of Mannar from Palk Bay, which lies to the north between Sri Lanka and India. The Malvathu River of Sri Lanka and the estuaries of Thamirabarani River and Vaipar River of South India drain into the Gulf. Hence both statements are correct.