Forms mouth of various rivers, namely, Narmada, Tapi, Mahi, Sabarmati
Gulf of Mannar
Separates India & Srilanka, Located at south east of Tamil Nadu
Asia’s 1st oceanic biodiversity protection region & a biosphere reserve
Famous port Tuticorin lies along its coast
Its environment is likely to be hampered by Setusamundram project
b/w India & Srilanka, & home to proposed Setusamundram project
b/w India & Srilanka, Palk strait has coral formation
Setusamundram project to connect Palk strait with Gulf of mannar
Adam’s Bridge/ Rama’s Bridge/ Rama Setu
a chain of limestone shoals, between Pamban Island, also known as Rameswaram Island
Lies off the southeastern coast of Tamil Nadu, India, and Mannar Island, off the northwestern coast of Sri Lanka
Sethusamudram Shipping Canal Project
Would link Palk Bay & Gulf of Mannar b/w Tamilnadu & Sri Lanka
By creating a shipping channel through the shallow sea called Sethusamudram via Ram Sethu.
Famous Seas / Oceans of India
Bay of Bengal
Bay of Bengal is bordered to the north by a wide continental shelf that narrows to the south and by slopes of varying gradient on the northwest, north, and northeast.
Bay of Bengal has a distinct tropical marine ecosystem, and copious river drainage into the northern part of the bay and the profusion of wetlands, marshes, and mangroves increase productivity of nearshore fish species.
Petroleum and natural-gas discoveries have been made in the Bay of Bengal, notably offshore of the Godavari and Manandi deltas.
The principal trade routes for large tankers en route from the Persian Gulf to the Strait of Malacca pass south of the Bay of Bengal.
Haldia, Vishakhapatnam, and Paradeep are well developed as iron ore terminals, reflecting India’s profitable exportation of raw materials.
Bay of Bengal Major Branches
Chandipur & Gopalpur in Orissa
Marina in Chennai
The Arabian Sea is a region of the Indian Ocean bounded on on the north by Pakistan and Iran, on the south by northeastern Somalia, on the east by India and on the west by the Arabian Peninsula.
The countries with coastlines on the Arabian Sea are Somalia, Djibouti, Yemen, Oman, Iran, Pakistan, India and the Maldives.
The Arabian Sea has two important branches — the Gulf of Aden in the southwest, connecting with the Red Sea through the strait of Bab-el-Mandeb; and the Gulf of Oman to the northwest, connecting with the Persian Gulf.
There are also the gulfs of Cambay and Kutch on the Indian coast.
The Indus and the Narmada rivers are the principal waterways draining into the sea.
Arabian Sea Major Branches
Mandavi, Dwarka & Chorwad in Gujrat
Dahanu & Murad in Maharashtra
Arambol & Karwar in Karnataka
Kollam & Kovalam in Kerala
Strategic significance→ India overlooks some of the most important sea lanes viz. Suez Canal, Malacca Strait
Economic significance→ Long coastline, 2.02 million sq km EEZ (Exclusive economic zone)
Tourism Significance→ Marine biodiversity and rich ecosystem with coral reefs, mangroves
Large Fishing potential, Wave energy & Tidal energy potential, Zone of Hydrocarbons