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{{Short description|Coastline of the Indian state}}
{{Use dmy dates|date=May 2019}}
{{Use Indian English|date=May 2019}}
The '''coastline of Tamil Nadu''' is located on the southeast coast of [[Indian Peninsula]], and forms a part of [[Coromandel Coast]] of [[Bay of Bengal]] through [[Pearl Fishery Coast]] of [[Indian Ocean]] and ends near [[Malabar Coast]]. It is 1076 km long and is the second longest [[coastline]] in the country after [[Gujarat]].<ref name="Info">{{cite web|url=http://iomenvis.nic.in/index3.aspx?sslid=882&subsublinkid=111&langid=1&mid=1|title=Centre for Coastal Zone Management and Coastal Shelter Belt|publisher= Institute for Ocean Management, Anna University Chennai|access-date=22 March 2015}}</ref> [[Chennai]], the capital of the state and an important commercial and industrial center in the country is located in the northern part of the coast with [[Kanniyakumari]], forming the southern tip where [[Indian Ocean]], [[Bay of Bengal]] and [[Arabian Sea]] meet. It also shares maritime border with [[Sri Lanka]] across the [[Palk strait]] in [[Gulf of Mannar]]. The coastal corridor consists of 14 districts with 15 major ports and harbors, sandy beaches, lakes and river estuaries. Tamil Nadu is the only state in India with territory on both the eastern and western coastlines.

==Geography==
The coastal stretch extends for {{convert|906|km|mi|abbr=on}} from [[Pazhaverkadu]] of [[Thiruvallur district]] to [[Ezhudesam]] of [[Kanniyakumari district]]. [[Kanniyakumari]], forms the southernmost tip of the mainland of the [[Indian subcontinent]] where [[Indian Ocean]], [[Bay of Bengal]] and [[Arabian Sea]] meet.<ref>{{cite web|url=http://www.britannica.com/EBchecked/topic/129466/Cape-Comorin|title=Cape Comorin |publisher= Encyclopædia Britannica|access-date=22 March 2015}}</ref> [[Pamban Island]] forms part of [[Ramanathapuram district]] separating [[Gulf of Mannar]] and [[Palk strait]] with the [[Ram Setu]] connecting it with [[Sri Lanka]].<ref>[http://tnmaps.tn.nic.in/district.php?dcode=27 Detailed map of Rameswaram taluka] {{webarchive |url=https://web.archive.org/web/20150402104258/http://tnmaps.tn.nic.in/district.php?dcode=27 |date=2 April 2015 }}</ref> There are 14 districts that share the coastline namely [[Thiruvallur district|Thiruvallur]], [[Chennai district|Chennai]], [[Chengalpattu district|Chengalpattu]], [[Villupuram district|Villupuram]], [[Cuddalore district|Cuddalore]], [[Mayiladuthurai district|Mayildathurai]], [[Nagapattinam district|Nagapattinam]], [[Tiruvarur District|Tiruvarur]], [[Thanjavur district|Thanjavur]], [[Pudukottai district|Pudukottai]], [[Ramanathapuram district|Ramanathapuram]], [[Tuticorin district|Thoothukudi]], [[Tirunelveli district|Tirunelveli]] and [[Kanyakumari district|Kanyakumari]].

==History==
[[File:Rajendra map new.svg|thumb|200px|Chola conquests during [[Rajendra Chola I]]]]

The coast of Tamil Nadu was a part of ancient [[silk route]] and played an important role in [[spice trade]] with western empires. Roman and Greek traders frequented the [[ancient Tamil country]] securing trade with the seafaring [[Tamil people|Tamil]] states of the [[Pandyan Empire|Pandyan]], [[Chola Empire|Chola]] and [[Chera Empire|Chera]] dynasties and [[Economy of ancient Tamil country#Foreign trade|establishing trading settlements]] which secured trade with South Asia by the [[Greco-Roman world]] since the time of the [[Ptolemaic dynasty]] a few decades before the start of the [[Common Era]] and remained long after the fall of the [[Western Roman Empire]].<ref name=Curtin1>Curtin 1984: 100</ref> Major ports included [[Uraiyur]], [[Korkai]], [[Puhar, Nagapattinam|Poompuhar and Kaveripattinam]]. The ancient city of Poompuhar was destroyed by the sea around 300 BCE.<ref>Gaur A. S. and Sundaresh, ''Underwater Exploration off Poompuhar and possible causes of its Submergence'', 1998, ''Puratattva'', 28: 84-90. Available online at [http://drs.nio.org/drs/bitstream/2264/2065/2/Puratattva_28_84.pdf]</ref><ref>''Marine archaeological explorations of Tranquebar-Poompuhar region on Tamil Nadu coast'', Rao, S.R.. ''Journal of Marine Archaeology'', Vol. II, July 1991, pp. 5–20. Available online at [http://drs.nio.org/drs/bitstream/2264/3295/2/Mar_Archaeol_2_5.pdf] {{Webarchive|url=https://web.archive.org/web/20110124225917/http://drs.nio.org/drs/bitstream/2264/3295/2/Mar_Archaeol_2_5.pdf|date=24 January 2011}}</ref><ref>"Indian town sees evidence of ancient tsunami", Associated Press report, Poompuhar,1/14/2005. Available online at [https://www.nbcnews.com/id/wbna6826956]</ref>

During the reign of [[Raja Raja Chola I]] and his successors [[Rajendra Chola I]], [[Virarajendra Chola]] and [[Kulothunga Chola I]] the armies of the Chola Dynasty invaded [[Chola rule in Sri Lanka|Sri Lanka]], [[Maldives]] and some parts of [[Southeast Asia]] like [[Chola invasion of Srivijaya|Malaysia, Indonesia and Southern Thailand]]<ref>Between 2 Oceans (2nd Edn): A Military History of Singapore from 1275 to 1971 by Malcolm H. Murfett, [[John Miksic]], Brian Farell, Chiang Ming Shun p.16</ref> of the [[Sri Vijaya]] Empire in the 11th century. [[Raja Raja Chola I]] launched several naval campaigns that resulted in the capture of Sri Lanka, Maldives and the Malabar Coast.<ref>''South India'' by Stuart Butler,Jealous p.38</ref> In 1025, [[Rajendra Chola]], the [[Chola]] king from [[Coromandel Coast|Coromandel]] in [[South India]], launched naval raids on ports of [[Srivijaya]] in [[Southeast Asia]] and against the Burmese kingdom of Pegu,<ref name="Munoz">{{cite book |last=Munoz|first=Paul Michel|title=Early Kingdoms of the Indonesian Archipelago and the Malay Peninsula|publisher=Editions Didier Millet|year=2006|location=Singapore|url=https://books.google.com/books?id=NqwuAQAAIAAJ |isbn= 981-4155-67-5}}</ref><ref>''Asia: A Concise History'' by Arthur Cotterell p.190</ref> and conquered parts of Srivijaya in [[Malaysia]] and [[Indonesia]] and the [[Tambralinga]] Kingdom in [[Southern Thailand]] and occupied it for some time.<ref>''The Sea and Civilization: A Maritime History of the World'' by Lincoln Paine p.866</ref> A second invasion was led by [[Virarajendra Chola]] of the Chola dynasty who conquered [[kedah]] in [[Malaysia]] of Sri Vijaya in the late 11th century.<ref>''History of Asia'' by B.V. Rao p.211</ref><ref>''Singapore in Global History'' by Derek Thiam Soon Heng,Syed Muhd Khairudin Aljunied p.40</ref><ref>Aryatarangini, the Saga of the Indo-Aryans, by A. Kalyanaraman p.158</ref><ref>India and Malaya Through the Ages: by S. Durai Raja Singam</ref>

==Sea-trade==
[[File:Madras_Port_In_1996.jpg|thumb|200px|Container terminal at Chennai port]]
[[File:Tiruchendur beach.JPG|thumb|200px|Seashore in Tiruchendur]]
Tamil Nadu has major [[seaport]]s at [[Chennai Port|Chennai]], [[Ennore Port|Ennore]], [[Tuticorin Port|Tuticorin]] and [[Nagapattinam]]. There are 11 other minor ports.<ref name="tnstat">{{cite web|url=http://india.gov.in/knowindia/st_tamilnadu.php |title=Tamil Nadu - States and Union Territories - Know India: National Portal of India |publisher=India.gov.in |date=2009-03-31 |access-date=2010-11-04}}</ref> [[Chennai Port]] is an artificial harbor and is India's second busiest container hub.<ref>{{cite news|url=http://www.joc.com/port-news/asian-ports/indian-ports-association/india%E2%80%99s-major-ports-see-rise-container-volumes_20140821.html|title=India's major ports see rise in container volumes|access-date=22 March 2015|archive-date=2 April 2015|archive-url=https://web.archive.org/web/20150402111255/http://www.joc.com/port-news/asian-ports/indian-ports-association/india%E2%80%99s-major-ports-see-rise-container-volumes_20140821.html|url-status=dead}}</ref>

Because of its shallow waters, Sethusamudram{{mdash}}the sea separating Sri Lanka from India{{mdash}}presents a hindrance to navigation through the Palk Strait. Though trade across the India-Sri Lanka divide has been active since at least the first millennium BCE, it has been limited to small boats and dinghies. Larger oceangoing vessels coming from the West have had to navigate around Sri Lanka to reach India' eastern coast.<ref name = Francis>{{cite book|last=Francis Jr.|first=Peter|title=Asia's Maritime Bead Trade: 300 B.C. to the Present|publisher=University of Hawaii Press|year=2002|isbn=0-8248-2332-X|url-access=registration|url=https://archive.org/details/asiasmaritimebea00fran}}</ref> The [[Sethusamudram Shipping Canal Project]] is a proposed project to create a shipping route in the shallow straits between India and Sri Lanka which would provide a continuously navigable sea route around the Indian Peninsula.<ref>{{cite news|url=https://www.indiatoday.in/mail-today/story/setusamudram-project-will-be-made-says-centre-154690-2013-02-22 |title=Centre will go ahead with Sethusamudram project |first=Gyanant |last=Singh |date=23 February 2013 |access-date=10 October 2013|publisher=Living Media India Limited|work=India Today.in}}</ref>

==Fishing and aquaculture==
The state has a fishermen population of 1.05 million and the coast consists of 3 major fishing harbors, 3 medium fishing harbors and 363 fish landing centers. The marine fishing output from the state contributes to 10-12 % of the total marine fish production in India and is estimated at 0.72 million tonnes. Aquaculture include [[shrimp]], [[sea weed]], [[mussel]], [[clam]] and [[oyster]] farming.<ref>{{cite web|url=http://www.fisheries.tn.gov.in/marine-main.html|title=Tamil Nadu fisheries department|access-date=22 March 2015|archive-date=2 April 2015|archive-url=https://web.archive.org/web/20150402141900/http://www.fisheries.tn.gov.in/marine-main.html|url-status=dead}}</ref>

There have been several alleged incidents of [[Sri Lankan Navy]] personnel firing on Indian fishermen fishing in the [[Palk Strait]], where India and Sri Lanka are only separated by 12 nautical miles.<ref>Rumley et al. 2009:166</ref> Indian Government protests periodically against Sri Lankan navy for its alleged involvement in attacks on Indian fishermen.<ref name="India News">{{cite web |url=http://news.indiavoice.info/politics/indian-fisherman-killed-in-lankan-firing-2011011318368/ |title=Indian fisherman killed in Lankan firing |publisher=IndiaVoice |date=2011-01-13 |access-date=2011-01-13 |url-status=usurped |archive-url=https://web.archive.org/web/20110721210437/http://news.indiavoice.info/politics/indian-fisherman-killed-in-lankan-firing-2011011318368/ |archive-date=2011-07-21 }}</ref> The incidents continue to happen and over 530 fishermen have been killed in the last 30 years.<ref name="2nd Fisherman killed">{{cite web|url=https://timesofindia.indiatimes.com/india/Second-TN-fisherman-killed-by-Lankan-Navy/articleshow/7350366.cms |archive-url=https://web.archive.org/web/20121104130326/http://articles.timesofindia.indiatimes.com/2011-01-24/india/28376055_1_sri-lankan-navy-naval-personnel-state-fisheries-department-officials |url-status=live |archive-date=2012-11-04 |title= Second TN fisherman killed by Lankan Navy |date=2011-01-22 |work=[[The Times of India]] |access-date=2011-01-24}}</ref>

[[File:Indian Ocean Earthquake2004.png|thumb|200px|alt=Map of the Indian Ocean region|Countries affected by the 2004 Indian Ocean earthquake]]

==Weather patterns==
The [[Bay of Bengal]] is responsible for the formation of some of the strongest and deadliest [[tropical cyclone]]s in the world. The basin is mostly affected by tropical cyclones.

According to official estimates, more than 10,000 people were killed and hundreds of thousands made homeless when a [[tsunami]] triggered by the [[2004 Indian Ocean earthquake]] near the [[Indonesia]]n island of [[Sumatra]] struck the southern coast of [[Tamil Nadu]] on 26 December 2004. The earthquake registered 9.1–9.3 [[Moment magnitude scale|''M''<sub>w</sub>]], and was the largest in five decades.<ref>{{cite web|title=Magnitude 9.1 earthquake hits Indonesia |url=https://earthquake.usgs.gov/earthquakes/eqinthenews/2004/us2004slav/ |publisher=U.S. Geological Survey |access-date=26 August 2012 |url-status=dead |archive-url=https://web.archive.org/web/20120901204211/http://earthquake.usgs.gov/earthquakes/eqinthenews/2004/us2004slav/ |archive-date=1 September 2012 }}</ref>

[[File:Marina Beach as seen from Light house..JPG|thumb|200px|View of marina beach from the lighthouse]]

==Beaches==
There are numerous beaches along the coast. [[Marina Beach]] in [[Chennai]]<ref>{{cite web |url=http://tamilnadu.com/destinations/marina-beach.html |title=Marina Beach in Chennai, Tamilnadu |publisher=Tamilnadu.com |access-date=22 March 2015 |archive-date=11 November 2013 |archive-url=https://web.archive.org/web/20131111133856/http://tamilnadu.com/destinations/marina-beach.html |url-status=dead }}</ref> covering a distance of {{convert|13|km|abbr=on}},<ref>{{cite web | title = Beaches in Tamilnadu | url = http://www.tamilnadutourism.org/places/beaches/default.aspx?catid=C1&subcat1id=C1S2&subcat2id=&sm=C1S2 | publisher = Tamilnadu Tourism Development Corporation | access-date = 8 May 2007}}</ref> is the longest natural urban beach in the country<ref>{{Citation|url=http://indiatravelto.info/2011/08/marina-beach-%E2%80%93-one-of-the-popular-beaches-of-india/|title=Marina Beach – One of the popular beaches of India|publisher=IndiaTravelTo|access-date=28 September 2011|url-status=dead|archive-url=https://web.archive.org/web/20110916170351/http://indiatravelto.info/2011/08/marina-beach-%E2%80%93-one-of-the-popular-beaches-of-india/|archive-date=16 September 2011}}</ref> and the world's second longest.<ref name="ObservingOurEnviron">{{Cite book|url=https://books.google.com/books?id=ZJfu5vbPbA0C&dq=Chennai+World's+fourth+largest+beach&pg=PA81|title=Observing our environment from space: new solutions for a new millennium ...|author=EARSeL|year=2002|isbn=90-5809-254-2|publisher=A. A. Balakema|access-date = 23 October 2011}}</ref>

==Flora and fauna==
The [[Gulf of Mannar Marine National Park]] is a [[Protected areas of India|protected area of India]] consisting of 21 small islands ([[islet]]s) and adjacent [[coral reef]]s in the [[Gulf of Mannar]]. It lies between [[Thoothukudi]] and [[Dhanushkodi]]. It is the core area of the [[Gulf of Mannar Biosphere Reserve#Conservation|Gulf of Mannar Biosphere Reserve]] which includes a 10 km buffer zone around the park, including the populated coastal area.<ref name=UNDP1>{{cite web|url=http://data.undp.org.in/factsheets/ene/oct06/GulfofMannar.pdf |title=Conservation and Sustainable-use of the Gulf of Mannar Biosphere Reserve's Coastal Biodiversity |access-date=2007-10-15 |author=UNDP |year=1994 |publisher=UNDP, Project Brief, New York |url-status=dead |archive-url=https://web.archive.org/web/20110721180802/http://data.undp.org.in/factsheets/ene/oct06/GulfofMannar.pdf |archive-date=2011-07-21 }}</ref> The park has a high [[Biodiversity|diversity]] of plants and animals in its [[Marine (ocean)|marine]], [[Intertidal zone|intertidal]] and near [[shore]] [[Habitat (ecology)|habitats]].<ref name= GMBRT1>{{cite web|url= http://www.forests.tn.nic.in/WildBiodiversity/np_gmmnp.html|title= Gulf of Mannar Marine National Park - Tamil Nadu Forest Dept. (GOMNP)|access-date= 2007-10-15|author= Shaunak B Modi|year= 2011|publisher= Gulf of Mannar Biosphere Reserve Trust|archive-url= https://web.archive.org/web/20071102053914/http://www.forests.tn.nic.in/WildBiodiversity/np_gmmnp.html|archive-date= 2 November 2007|url-status= dead}}</ref> About 510 (23%) of the 2,200 fin fish species in Indian waters are found in the Gulf, making it the most highly diverse fish habitat in India.{{fact|date=May 2019}}

== See also ==

* [[Ma'bar Coast]]
* [[Pearl Fishery Coast]]
* Cost of Tamilnadu
* [[Coromandel Coast]]

==References==
{{reflist}}

{{coord missing|Tamil Nadu}}

[[Category:Environment of Tamil Nadu]]
[[Category:Landforms of Tamil Nadu]]
[[Category:Coasts of India]]

Coastline of Tamil Nadu - Revision history

EverettePowe35 at 20:29, 19 March 2026