The Gulf of Mannar is situated along the coast of

The Gulf of Mannar is a large, shallow bay located along the southeastern coast of India, specifically bordering the state of Tamil Nadu [t2][t7]. It is situated between the southeastern tip of India and the western coast of Sri Lanka, separated from the Palk Strait by a chain of islands and reefs known as Adam's Bridge [c5][t2]. The region is home to the Gulf of Mannar Marine National Park, which consists of 21 islets stretching from Rameswaram (Dhanushkodi) to Tuticorin (Thoothukudi) along the Tamil Nadu coastline [t1][t2]. This area was designated as India's first Marine Biosphere Reserve in 1989, jointly managed by the Government of India and the state of Tamil Nadu [t10]. Geographically, it lies adjacent to the Tirunelveli and Ramanathapuram districts, where rivers like the Vaigai flow into its waters [c2][c3].

Sources

1. [1] https://en.wikipedia.org/wiki/Gulf_of_Mannar
2. [2] CONTEMPORARY INDIA-I ,Geography, Class IX . NCERT(Revised ed 2025) > Chapter 1: India Size and Location > Before 1947, there were two types of states in India — the provinces and the Princely states. Provinces were ruled directly by British officials, who were appointed by the Viceroy. Princely states were ruled by local, hereditary rulers, who acknowledged sovereignity in return for local autonomy. > p. 5
3. [3] http://tnenvis.nic.in/tnenvis_old/coastal%20data.pdf
4. [4] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 6: Geomorphic Movements > Subsidence > p. 81
5. [5] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 3: The Drainage System of India > The Tambraparni > p. 22