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The Greater Chennai Metropolitan Area, or simply the Chennai Metropolitan Area (CMA), is the third-most populous
metropolitan area A metropolitan area or metro is a region that consists of a densely populated urban agglomeration and its surrounding territories sharing industries, commercial areas, transport network, infrastructures and housing. A metro area usually com ...
in
India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...
, the 22nd-most in
Asia Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an area ...
, and the 40th-most in the world. The CMA consists of the core city of
Chennai Chennai (, ), formerly known as Madras ( the official name until 1996), is the capital city of Tamil Nadu, the southernmost Indian state. The largest city of the state in area and population, Chennai is located on the Coromandel Coast of th ...
, which is coterminous with the
Chennai district Chennai district, formerly known as Madras district, is one of the 38 districts in the state of Tamil Nadu, India. It is the smallest and the most densely populated district in the state. The district is coterminous with the city of Chennai, w ...
, and its
suburbs A suburb (more broadly suburban area) is an area within a metropolitan area, which may include commercial and mixed-use, that is primarily a residential area. A suburb can exist either as part of a larger city/urban area or as a separate ...
in Kanchipuram (except Uthiramerur taluk),
Chengalpattu Chengalpattu, previously known as Chingleput, is a city and the headquarters of Chengalpattu district of the state Tamil Nadu, India. The town is located near to the industrial and IT hub. It is the headquarters of the district and is away fro ...
(except Madurantakam and Cheyyur taluks),
Thiruvallur Tiruvallur is a Grade I municipality and a fast developing city in the Indian state of Tamil Nadu. It is located on the banks of Coovum river about from downtown Chennai ( Madras) and just 5 km from megacity border, in the western p ...
(except Pallipattu, RK Pet and parts of Tiruttani taluks), and
Ranipet Ranipet is a southern suburb of Chennai, India. Ranipet (lit. Queen's colony) is an industrial hub of Southern Chennai city in southern India. It is located about from the Chennai city center. It is a major industrial town located on NH 4 Che ...
(parts of Arakkonam taluk) districts. The
Chennai Metropolitan Development Authority The Chennai Metropolitan Development Authority (CMDA), formerly known as the Madras Metropolitan Development Authority (MMDA), is the nodal planning agency of Chennai in the Indian state of Tamil Nadu. The CMDA administers the Chennai Metropol ...
(CMDA) is the nodal agency that handles town planning and development within the metro area. Since 1974, an area encompassing around the city has been designated as the CMA and the CMDA has been designated as the authority to plan the growth of the city and the area around it. But in October 2022 the area of CMA was expanded five-fold to .


Economy

Recent estimates of the economy of the Chennai metropolitan area (which includes the industrial zones) is over US$200 billion ( PPP
GDP Gross domestic product (GDP) is a monetary measure of the market value of all the final goods and services produced and sold (not resold) in a specific time period by countries. Due to its complex and subjective nature this measure is ofte ...
), making it the third most productive metro area of India, and the third highest by GDP per capita. Previously, the metropolitan area didn't include the nearby industrial zones of
Siruseri Siruseri is a southern suburb of Chennai, India. It is a village under Thiruporur panchayat union in Chengalpattu district, Tamil Nadu, and is 35 km from Chennai, along the Old Mahabalipuram Road. It is located between Navalur and Kelam ...
,
Oragadam Oragadam () is an industrial suburb of Chennai, India. It is located southwest from the city center and is centrally located between Grand Southern Trunk Road ( NH 45) and NH 4. The locality, known as the biggest automobile hub in South Asia, ...
, and
Sriperumbudur Sriperumbudur is a town panchayat in the Kanchipuram district of the Indian state of Tamil Nadu. It is located 40 kilometers southwest of the capital city of Chennai on the National Highway 4 (India)(old numbering), National Highway 4 and i ...
, due to which the economy of these regions didn't get included in the economy of Chennai. Now, post expansion of the Chennai metropolitan area in 2022, these regions are included, and the GDP of Chennai which was previously around US$86 billion has increased drastically to over US$200 billion.


Composition

The CMA is a
metropolitan area A metropolitan area or metro is a region that consists of a densely populated urban agglomeration and its surrounding territories sharing industries, commercial areas, transport network, infrastructures and housing. A metro area usually com ...
in
Tamil Nadu Tamil Nadu (; , TN) is a States and union territories of India, state in southern India. It is the List of states and union territories of India by area, tenth largest Indian state by area and the List of states and union territories of India ...
state, consisting of the state capital
Chennai Chennai (, ), formerly known as Madras ( the official name until 1996), is the capital city of Tamil Nadu, the southernmost Indian state. The largest city of the state in area and population, Chennai is located on the Coromandel Coast of th ...
(previously known as Madras) and its satellite towns. Developing over a period of about 20 years, it consists of 2
municipal corporation A municipal corporation is the legal term for a local governing body, including (but not necessarily limited to) cities, counties, towns, townships, charter townships, villages, and boroughs. The term can also be used to describe municipally owne ...
s, 7 municipalities and 14 smaller town councils. The entire area is overseen by the
Chennai Metropolitan Development Authority The Chennai Metropolitan Development Authority (CMDA), formerly known as the Madras Metropolitan Development Authority (MMDA), is the nodal planning agency of Chennai in the Indian state of Tamil Nadu. The CMDA administers the Chennai Metropol ...
(CMDA), a
Tamil Nadu Tamil Nadu (; , TN) is a States and union territories of India, state in southern India. It is the List of states and union territories of India by area, tenth largest Indian state by area and the List of states and union territories of India ...
State Government organisation in charge of town planning, development, transportation and housing in the region. The CMDA was formed to address the challenges in planning and development of integrated infrastructure for the metropolitan region. The areas outside
Greater Chennai Corporation The Greater Chennai Corporation, formerly known as the Corporation of Madras (1688-1996) and Corporation of Chennai (1996-2016), is the civic body that governs the city of Chennai in the Indian state of Tamil Nadu. Inaugurated on 29 September ...
(
Chennai District Chennai district, formerly known as Madras district, is one of the 38 districts in the state of Tamil Nadu, India. It is the smallest and the most densely populated district in the state. The district is coterminous with the city of Chennai, w ...
) like Kanchipuram,
Chengalpattu Chengalpattu, previously known as Chingleput, is a city and the headquarters of Chengalpattu district of the state Tamil Nadu, India. The town is located near to the industrial and IT hub. It is the headquarters of the district and is away fro ...
and
Tiruvallur Tiruvallur is a Grade I municipality and a fast developing city in the Indian state of Tamil Nadu. It is located on the banks of Coovum river about from downtown Chennai (Madras) and just 5 km from megacity border, in the western p ...
have lacked organised development. The CMA comprises the city of
Chennai Chennai (, ), formerly known as Madras ( the official name until 1996), is the capital city of Tamil Nadu, the southernmost Indian state. The largest city of the state in area and population, Chennai is located on the Coromandel Coast of th ...
and its neighbourhood corporations of
Avadi Avadi () is a suburb of Chennai within Chennai Metropolitan Area limit, located in the Thiruvallur district of Tamil Nadu, India. It is a municipal corporation west of Chennai, about from Chennai Central Railway Station. It is surrounded by majo ...
and
Tambaram Tambaram is a southern suburb of Chennai, India. Located in the Chengalpattu district of Tamil Nadu, it is governed by Tambaram City Municipal Corporation and is a part of the Chennai Metropolitan Area. Etymology Tambaram is an ancient to ...
, 8 municipalities, 11 town panchayats and 179 village panchayats in 10 panchayat unions. The CMA has an area of 1,189 km2. It includes the whole of the
Chennai District Chennai district, formerly known as Madras district, is one of the 38 districts in the state of Tamil Nadu, India. It is the smallest and the most densely populated district in the state. The district is coterminous with the city of Chennai, w ...
, along with the
Ambattur Ambattur is located in northwestern part of Chennai City, in Ambattur taluk of the Chennai District, surrounded by Avadi, Anna Nagar, Padi, Mogappair, Kallikuppam, Surapet, Korattur, Ayappakkam, and Thiruverkadu. It covers an area of . The nei ...
, Gummidipoondi,
Madhavaram Madhavaram may refer to: Places in South India Andhra Pradesh * Madhavaram, Kukkunoor, a village in Kukkunoor Taluk, Eluru district * Madhavaram, Tadepalligudem, a village in Tadepalligudem mandal Tadepalligudem mandal is one of the 19 mand ...
,
Ponneri Ponneri is a town located in Chennai Metropolitan Region, Thiruvallur district in the Indian state of Tamil Nadu. It is located in Ponneri taluk. Ponneri is major destination for Andhra Pradesh people to buy goods. Geography Ponneri is ...
,
Poonamallee Poonamallee is suburb of Chennai, India under the Chennai Metropolitan Area. It was historically called ''Pushpagirimangalam'', later renamed in Tamil as ''Poovirundhavalli'' (), and now colloquially called as ''Poondhamalli''. It is a town in ...
and
Tiruvallur taluk Thiruvallur taluk is a taluk of Tiruvallur district of the Indian state of Tamil Nadu. The headquarters of the taluk is the town of Thiruvallur Tiruvallur is a Grade I municipality and a fast developing city in the Indian state of Tamil ...
s of the Tiruvallur District,
Sriperumbudur Sriperumbudur is a town panchayat in the Kanchipuram district of the Indian state of Tamil Nadu. It is located 40 kilometers southwest of the capital city of Chennai on the National Highway 4 (India)(old numbering), National Highway 4 and i ...
and
Kundrathur Kundrathur is a south western suburb of the city of Chennai, India and it comes under Kanchipuram District limits. It is the birthplace of Sekkizhar, a well-known poet-saint who authored the Periyapuranam. The locality is known for the Kundr ...
taluks of the
Kancheepuram District Kancheepuram district is one of the 38 districts in the state of Tamil Nadu in India. The area comprising the present day Kancheepuram district was earlier a part of Chingleput district. The original Chingleput district was split in 1997 into f ...
, Pallavaram,
Vandalur Vandalur is a census town and residential locality in southern part of the metropolitan city of Chennai, India. It is a neighbourhood in the southwestern part of Chennai. Vandalur serves as the southern gateway to Chennai city. It has the Ari ...
and
Tambaram taluk Tambaram taluk is a taluk of Chengalpattu district of the Indian state of Tamil Nadu. The headquarters of the taluk is the town of Tambaram Tambaram is a southern suburb of Chennai, India. Located in the Chengalpattu district of Tamil Nadu ...
s of the
Chengalpattu district Chengalpattu District is one of the 38 List of districts of Tamil Nadu, districts of Tamil Nadu, in India. The district headquarters is located at Chengalpattu. Chengalpattu district came into existence on 29 November 2019 when it was carved o ...
. The CMA falls in three Districts of the Tamil Nadu State viz.
Chennai District Chennai district, formerly known as Madras district, is one of the 38 districts in the state of Tamil Nadu, India. It is the smallest and the most densely populated district in the state. The district is coterminous with the city of Chennai, w ...
, part of Thiruvallur District, part of
Chengalpattu District Chengalpattu District is one of the 38 List of districts of Tamil Nadu, districts of Tamil Nadu, in India. The district headquarters is located at Chengalpattu. Chengalpattu district came into existence on 29 November 2019 when it was carved o ...
and part of
Kancheepuram District Kancheepuram district is one of the 38 districts in the state of Tamil Nadu in India. The area comprising the present day Kancheepuram district was earlier a part of Chingleput district. The original Chingleput district was split in 1997 into f ...
. The extent of the Chennai District (covered in Chennai Municipal Corporation area) is 426 km2 and comprises 55 revenue villages in 10 Taluks
Chengalpattu_district_ Chengalpattu_District_is_one_of_the_38_List_of_districts_of_Tamil_Nadu,_districts_of_Tamil_Nadu,_in_India._The_district_headquarters_is_located_at_Chengalpattu._Chengalpattu_district_came_into_existence_on_29_November_2019_when_it_was_carved_o_...
_fall_in_the_metropolitan_area. CMA_region_has_about_3,000_water_bodies,_most_of_which_have_been_encroached_upon_by_real_estate_dealers_and_small_communities. The_Chennai_metropolitan_area_is_set_to_be_expanded_further,_incorporating_the_entire_districts_of_Chengalpattu_ Chengalpattu,_previously_known_as_Chingleput,_is_a_city_and_the_headquarters_of_Chengalpattu_district_of_the_state_Tamil_Nadu,_India._The_town_is_located_near_to_the_industrial_and_IT_hub._It_is_the_headquarters_of_the_district_and_is__away_fro_...
,_Tiruvallur_ Tiruvallur_is_a_Grade I_municipality_and_a_fast_developing_city_in_the_Indian__state_of_Tamil_Nadu.__It_is_located_on_the_banks_of_Coovum_river_about__from_downtown_Chennai_(Madras)_and_just_5 km_from_megacity_border,_in_the_western_p_...
_and_Kanchipuram_district.html" "title="iz. (i) Tondiarpet Taluk, (ii) Perambur Taluk, (iii) Purasawalkam Taluk, (iv) Egmore Taluk, (v) Mambalam Taluk, (vi) Guindy Taluk, (vii) Mylapore Taluk, (viii) Velachery Taluk, (ix) Aminjikarai Taluk and (x) Ayanavaram Taluk. In Thiruvallur District out of total district area of 3,427 km2, 637 km2 in Ambattur, Thiruvallur, Ponneri and Poonamallee taluks fall into the CMA. In Kancheepuram District out of 4,433 km2, 376 km2 in Tambaram, Sriperumbudur and
Chengalpattu district Chengalpattu District is one of the 38 List of districts of Tamil Nadu, districts of Tamil Nadu, in India. The district headquarters is located at Chengalpattu. Chengalpattu district came into existence on 29 November 2019 when it was carved o ...
fall in the metropolitan area. CMA region has about 3,000 water bodies, most of which have been encroached upon by real estate dealers and small communities. The Chennai metropolitan area is set to be expanded further, incorporating the entire districts of
Chengalpattu Chengalpattu, previously known as Chingleput, is a city and the headquarters of Chengalpattu district of the state Tamil Nadu, India. The town is located near to the industrial and IT hub. It is the headquarters of the district and is away fro ...
,
Tiruvallur Tiruvallur is a Grade I municipality and a fast developing city in the Indian state of Tamil Nadu. It is located on the banks of Coovum river about from downtown Chennai (Madras) and just 5 km from megacity border, in the western p ...
and Kanchipuram district">Kancheepuram Kanchipuram ('; ) also known as ''Conjeevaram,'' is a city in the Indian state of Tamil Nadu in the Tondaimandalam region, from Chennaithe capital of Tamil Nadu. Known as the ''City of Thousand Temples'', Kanchipuram is known for its temple ...
, and the Arakkonam taluk, Nemili, Nemili Taluk of the
Ranipet district Ranipet district is one of the 38 districts of Tamil Nadu, India, formed by trifurcating Vellore district. The Government of Tamil Nadu has announced its proposal on 15 August 2019, together with Tirupattur district. However, it was officiall ...
. In future it may expand further. Plans to expand Chennai Metropolitan Area seven folds from existing 1,189 km2 to 8,878 km2 appears to be scaled down in view of opposition from farmers in giving up their agricultural lands. The government is looking at maximum utilization of the available spaces in the core city and urbanized pockets in the suburbs for residential development. Only area well connected with the available rail infrastructure will be included in the expansion plan of CMA. The extent of expansion will be scaled down from 8,878 km2 to 3,000–4,000 km2.


Nodal agencies


Municipal corporations

#
Greater Chennai Corporation The Greater Chennai Corporation, formerly known as the Corporation of Madras (1688-1996) and Corporation of Chennai (1996-2016), is the civic body that governs the city of Chennai in the Indian state of Tamil Nadu. Inaugurated on 29 September ...
#
Avadi Municipal Corporation Avadi City Municipal Corporation is the civic body governing the suburb of Avadi in Chennai, Indian state of Tamil Nadu. Municipal Corporation mechanism in India was introduced during British Rule with formation of municipal corporation in Madras ...
# Kanchipuram Municipal Corporation #
Tambaram Municipal Corporation Tambaram City Municipal Corporation is the civic body administering Tambaram, a southern suburb of Chennai, Tamil Nadu, India. It covers an area of 87.64 sq. km and has an estimated 2021 population of 960,887. It is one of the thre ...


Municipalities

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Guduvancheri Guduvancheri is a suburb located in the southern part of Chennai city, Tamil Nadu, India. It has a railway station on the Chennai Beach–Chengalpattu section of the Chennai Suburban Railway Network. It is a municipality in Chengalpattu dist ...
#
Mangadu Mangadu is a western neighborhood of Chennai, India. Literally meaning a mango forest, Mangadu Municipality is about 18 km from Chennai Central railway station, 14 km from Chennai International Airport and 13 km from CMBT. Dem ...
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Kundrathur Kundrathur is a south western suburb of the city of Chennai, India and it comes under Kanchipuram District limits. It is the birthplace of Sekkizhar, a well-known poet-saint who authored the Periyapuranam. The locality is known for the Kundr ...
#
Poonamallee Poonamallee is suburb of Chennai, India under the Chennai Metropolitan Area. It was historically called ''Pushpagirimangalam'', later renamed in Tamil as ''Poovirundhavalli'' (), and now colloquially called as ''Poondhamalli''. It is a town in ...
# Thiruverkadu #
Thiruninravur Thirunindravur is a neighbourhood situated on the western part of Chennai, Tamil Nadu, India. It is located around 29 km from Chennai Central railway station. Thirunindravur comes under Chennai Metropolitan Area. The neighbourhood is serv ...
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Tiruvallur Tiruvallur is a Grade I municipality and a fast developing city in the Indian state of Tamil Nadu. It is located on the banks of Coovum river about from downtown Chennai (Madras) and just 5 km from megacity border, in the western p ...
#
Tiruttani Tiruttani is a town in Tiruvallur district, suburb of Chennai within Chennai Metropolitan Area limit in state of Tamil Nadu, India. This town is famous for Tiruttani Murugan Temple which is one of the Arupadaiveedu and is dedicated to (Kartik ...
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Maraimalai Nagar Maraimalai Nagar is a satellite town of Chennai, Chengalpattu district, Tamil Nadu, India. It is a municipality town in Chengalpattu district. It lies in the southern part of the Chennai metropolitan area around 50 km from downtown Chennai ...
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Chengalpattu Chengalpattu, previously known as Chingleput, is a city and the headquarters of Chengalpattu district of the state Tamil Nadu, India. The town is located near to the industrial and IT hub. It is the headquarters of the district and is away fro ...
#
Ponneri Ponneri is a town located in Chennai Metropolitan Region, Thiruvallur district in the Indian state of Tamil Nadu. It is located in Ponneri taluk. Ponneri is major destination for Andhra Pradesh people to buy goods. Geography Ponneri is ...
#
Arakkonam Arakkonam () is a railway town and suburb of Chennai within Chennai Metropolitan Area limit, in the Indian state of Tamil Nadu, with a population of 78,395 per the census 2011. It is in the newly created Ranipet district, about from Ranipet ...


Districts

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Chennai Chennai (, ), formerly known as Madras ( the official name until 1996), is the capital city of Tamil Nadu, the southernmost Indian state. The largest city of the state in area and population, Chennai is located on the Coromandel Coast of th ...
(Complete) #
Chengalpattu Chengalpattu, previously known as Chingleput, is a city and the headquarters of Chengalpattu district of the state Tamil Nadu, India. The town is located near to the industrial and IT hub. It is the headquarters of the district and is away fro ...
(Except
Madurantakam Madurantakam () is the southernmost suburb of Chennai city and a municipality in Chengalpattu district in the Indian state of Tamil Nadu. The town is known for the artificial and second largest lake in Tamil Nadu, the Maduranthakam lake. It is ...
and
Cheyyur Cheyyur (), is a town in Chengalpattu district in the Indian state of Tamil Nadu. Cheyyur is surrounded by four sub-areas: North, East, South and West Cheyyur. The town has a Taluk Office (administrative offices) and a regional treasury centre. ...
taluks) # Kanchipuram (Except
Uthiramerur Uthiramerur is a panchayat town in Kancheepuram district in the Indian state of Tamil Nadu. It is situated 90 km south west of Chennai, the capital of Tamilnadu. It is noted for its temple inscriptions that describe a self-governance system ...
taluk) #
Tiruvallur Tiruvallur is a Grade I municipality and a fast developing city in the Indian state of Tamil Nadu. It is located on the banks of Coovum river about from downtown Chennai (Madras) and just 5 km from megacity border, in the western p ...
(Except
Pallipattu Pallipattu is a town in Tamil Nadu and a border town located between the Chittoor District of Andhra Pradesh and Tiruvallur District of Tamil Nadu . It is known for its rich and fertile agricultural lands and is blessed with the flowing of rive ...
, RK Pet & parts of
Tiruttani Tiruttani is a town in Tiruvallur district, suburb of Chennai within Chennai Metropolitan Area limit in state of Tamil Nadu, India. This town is famous for Tiruttani Murugan Temple which is one of the Arupadaiveedu and is dedicated to (Kartik ...
taluks) #
Ranipet Ranipet is a southern suburb of Chennai, India. Ranipet (lit. Queen's colony) is an industrial hub of Southern Chennai city in southern India. It is located about from the Chennai city center. It is a major industrial town located on NH 4 Che ...
(Parts of
Arakkonam Arakkonam () is a railway town and suburb of Chennai within Chennai Metropolitan Area limit, in the Indian state of Tamil Nadu, with a population of 78,395 per the census 2011. It is in the newly created Ranipet district, about from Ranipet ...
taluks)


Taluks

The CMDA has proposed to trifurcate the CMA into Central, North and South.


CMA Central

The former jurisdiction of CMA covering 1,189 sqkm would be juridiction the CMA Central which spread over the below areas: In
Chennai district Chennai district, formerly known as Madras district, is one of the 38 districts in the state of Tamil Nadu, India. It is the smallest and the most densely populated district in the state. The district is coterminous with the city of Chennai, w ...
#
Alandur Alandur is a zone of Chennai corporation, and an urban node in Chennai district in Guindy division in the state of Tamil Nadu, India. It is Surrounded by Guindy in the North and East, Adambakkam in the South, Pazhavanthangal in the South-We ...
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Ambattur Ambattur is located in northwestern part of Chennai City, in Ambattur taluk of the Chennai District, surrounded by Avadi, Anna Nagar, Padi, Mogappair, Kallikuppam, Surapet, Korattur, Ayappakkam, and Thiruverkadu. It covers an area of . The nei ...
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Aminjikarai Aminjikarai, originally Amaindakarai, is one of the oldest neighbourhoods in Chennai, Tamil Nadu, India. The arterial Poonamallee High Road ( NH 4) runs through it. Aminjikarai was annexed to Madras District in the year 1946, and Arumbakkam an ...
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Ayanavaram Ayanpuram, or Ayanavaram, is a neighbourhood in Chennai, India. Konnur High Road, one of the important connecting roads in Chennai runs through Ayanavaram. Etymology The neighbourhood was originally known as Ayanpuram, with Ayan meaning Brahma ...
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Egmore Egmore is a neighbourhood of Chennai, India. Situated on the northern banks of the Coovum River, Egmore is an important residential area as well as a commercial and transportation hub. The Egmore Railway Station was the main terminus of the Madr ...
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Guindy Guindy is one of the most important neighborhoods of Chennai, Tamil Nadu, and is nicknamed as ''The Gateway to Chennai''. The Kathipara junction where Anna Salai, Mount-Poonamallee Road, Inner Ring Road, 100 Feet Road or Jawaharlal Nehru Roa ...
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Madhavaram Madhavaram may refer to: Places in South India Andhra Pradesh * Madhavaram, Kukkunoor, a village in Kukkunoor Taluk, Eluru district * Madhavaram, Tadepalligudem, a village in Tadepalligudem mandal Tadepalligudem mandal is one of the 19 mand ...
#
Maduravoyal Maduravoyal is a residential neighbourhood located in the west of Chennai, India. As of 2011, the town had a population of 86,195. Maduravoyal also has a name as "ettam kal" (8th mile), so it could be famous in British Period too, it is exac ...
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Mambalam West Mambalam is a residential and commercial area in Chennai, India. It is known for its shops, bazaars and Hindu temples. It is bounded by Kodambakkam to the north and Saidapet to the south. T. Nagar and Nandanam stretch all along its eastern ...
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Mylapore Mylapore, also spelt Mayilapur, is a neighbourhood in the central part of the city of Chennai, India. It is one of the oldest residential parts of the city. It is also called Tirumayilai. The locality is claimed to be the birthplace of the cel ...
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Perambur Perambur is a neighbourhood located in the northern region of Chennai, Tamil Nadu, India. Etymology In Tamil, ''pirambu (பிரம்பு)'' means bamboo and ''ur (ஊர்)'' means city or place. Before British rule, this place was wid ...
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Purasawalkam Purasawakkam, also known as Purasaiwakkam or Purasai / Purasawalkam, is a residential shopping area in the district of Chennai in the state of Tamil Nadu, India. It is close to the Chennai Central and Chennai Egmore railway stations. Etymo ...
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Sholinganallur Sholinganallur, also spelled Solinganalloor or Sozhinganalloor, is a locality in the southern part of Chennai, India. Etymology The etymology given by Tamil scholars is "chola" + "angam" + "nallur" , which indicates that Sholinganallur was on ...
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Thiruvottiyur Tiruvottriyur (Thiruvottiyur or TVT) is a neighbourhood in North Chennai, administered by the Greater Chennai Corporation. It is part of the Tondiarpet division, located to the north of Chennai. It is one of the fifteen administrative zones in ...
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Tondiarpet Tondiarpet is a northern neighbourhood of Chennai, Tamil Nadu, India. Etymology This area got its name from a famous nineteenth-century Muslim Saint Kunangudi Masthan Sahib. His birthplace is located near Thondi in Ramanathapuram District. H ...
# Velachery In
Chengalpattu district Chengalpattu District is one of the 38 List of districts of Tamil Nadu, districts of Tamil Nadu, in India. The district headquarters is located at Chengalpattu. Chengalpattu district came into existence on 29 November 2019 when it was carved o ...
# Pallavaram #
Tambaram Tambaram is a southern suburb of Chennai, India. Located in the Chengalpattu district of Tamil Nadu, it is governed by Tambaram City Municipal Corporation and is a part of the Chennai Metropolitan Area. Etymology Tambaram is an ancient to ...
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Vandalur Vandalur is a census town and residential locality in southern part of the metropolitan city of Chennai, India. It is a neighbourhood in the southwestern part of Chennai. Vandalur serves as the southern gateway to Chennai city. It has the Ari ...
(partial) In
Kanchipuram district Kancheepuram district is one of the 38 districts in the state of Tamil Nadu in India. The area comprising the present day Kancheepuram district was earlier a part of Chingleput district. The original Chingleput district was split in 1997 into ...
#
Kundrathur Kundrathur is a south western suburb of the city of Chennai, India and it comes under Kanchipuram District limits. It is the birthplace of Sekkizhar, a well-known poet-saint who authored the Periyapuranam. The locality is known for the Kundr ...
(partial) In Tiruvallur district #
Avadi Avadi () is a suburb of Chennai within Chennai Metropolitan Area limit, located in the Thiruvallur district of Tamil Nadu, India. It is a municipal corporation west of Chennai, about from Chennai Central Railway Station. It is surrounded by majo ...
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Poonamallee Poonamallee is suburb of Chennai, India under the Chennai Metropolitan Area. It was historically called ''Pushpagirimangalam'', later renamed in Tamil as ''Poovirundhavalli'' (), and now colloquially called as ''Poondhamalli''. It is a town in ...
(partial) #
Ponneri Ponneri is a town located in Chennai Metropolitan Region, Thiruvallur district in the Indian state of Tamil Nadu. It is located in Ponneri taluk. Ponneri is major destination for Andhra Pradesh people to buy goods. Geography Ponneri is ...
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CMA North

The proposed CMA North will cover an area of 2,908 sqkm which spread over the below areas: In Tiruvallur district # Gummidipoondi #
Poonamallee Poonamallee is suburb of Chennai, India under the Chennai Metropolitan Area. It was historically called ''Pushpagirimangalam'', later renamed in Tamil as ''Poovirundhavalli'' (), and now colloquially called as ''Poondhamalli''. It is a town in ...
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Ponneri Ponneri is a town located in Chennai Metropolitan Region, Thiruvallur district in the Indian state of Tamil Nadu. It is located in Ponneri taluk. Ponneri is major destination for Andhra Pradesh people to buy goods. Geography Ponneri is ...
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Tiruvallur Tiruvallur is a Grade I municipality and a fast developing city in the Indian state of Tamil Nadu. It is located on the banks of Coovum river about from downtown Chennai (Madras) and just 5 km from megacity border, in the western p ...
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Tiruttani Tiruttani is a town in Tiruvallur district, suburb of Chennai within Chennai Metropolitan Area limit in state of Tamil Nadu, India. This town is famous for Tiruttani Murugan Temple which is one of the Arupadaiveedu and is dedicated to (Kartik ...
(partial) # Uthukottai In
Kanchipuram district Kancheepuram district is one of the 38 districts in the state of Tamil Nadu in India. The area comprising the present day Kancheepuram district was earlier a part of Chingleput district. The original Chingleput district was split in 1997 into ...
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Sriperumbudur Sriperumbudur is a town panchayat in the Kanchipuram district of the Indian state of Tamil Nadu. It is located 40 kilometers southwest of the capital city of Chennai on the National Highway 4 (India)(old numbering), National Highway 4 and i ...
In
Ranipet district Ranipet district is one of the 38 districts of Tamil Nadu, India, formed by trifurcating Vellore district. The Government of Tamil Nadu has announced its proposal on 15 August 2019, together with Tirupattur district. However, it was officiall ...
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Arakkonam Arakkonam () is a railway town and suburb of Chennai within Chennai Metropolitan Area limit, in the Indian state of Tamil Nadu, with a population of 78,395 per the census 2011. It is in the newly created Ranipet district, about from Ranipet ...
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CMA South

The proposed CMA South will cover an area of 1,809 sqkm which spread over the below areas: In
Chengalpattu district Chengalpattu District is one of the 38 List of districts of Tamil Nadu, districts of Tamil Nadu, in India. The district headquarters is located at Chengalpattu. Chengalpattu district came into existence on 29 November 2019 when it was carved o ...
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Chengalpattu Chengalpattu, previously known as Chingleput, is a city and the headquarters of Chengalpattu district of the state Tamil Nadu, India. The town is located near to the industrial and IT hub. It is the headquarters of the district and is away fro ...
# Tirukalukundram #
Thiruporur Thiruporur is a panchayat town in Chengalpattu district in the Indian state of Tamil Nadu. The Thiruporur Kandaswamy temple is situated in the center of the town. There is a large temple tank in the vicinity of the temple. Thiruporur is located ...
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Vandalur Vandalur is a census town and residential locality in southern part of the metropolitan city of Chennai, India. It is a neighbourhood in the southwestern part of Chennai. Vandalur serves as the southern gateway to Chennai city. It has the Ari ...
(partial) In
Kanchipuram district Kancheepuram district is one of the 38 districts in the state of Tamil Nadu in India. The area comprising the present day Kancheepuram district was earlier a part of Chingleput district. The original Chingleput district was split in 1997 into ...
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Kundrathur Kundrathur is a south western suburb of the city of Chennai, India and it comes under Kanchipuram District limits. It is the birthplace of Sekkizhar, a well-known poet-saint who authored the Periyapuranam. The locality is known for the Kundr ...
(partial) # Kanchipuram #
Walajabad Walajabad is a panchayat town in Kancheepuram district in the Indian state of Tamil Nadu. It is the main town in Walajabad taluk. Demographics India census A census is the procedure of systematically acquiring, recording and calculating inf ...


Expansion

The CMDA regulates developments in the Chennai metropolitan area through the issuance of planning permission under section 49 of the Tamil Nadu Town and Country Planning Act 1971. The first plans to expand the CMA were proposed by the CMDA in 2011. The need for expansion arose as several nearby settlements such as
Sriperumbudur Sriperumbudur is a town panchayat in the Kanchipuram district of the Indian state of Tamil Nadu. It is located 40 kilometers southwest of the capital city of Chennai on the National Highway 4 (India)(old numbering), National Highway 4 and i ...
,
Kelambakkam Kelambakkam is a suburban and residential neighbourhood of Chennai, India. It is located in the south-eastern portion of the city along the Old Mahabalipuram Road (OMR), and is about 5 km from Siruseri IT park and 12 km from Sholingan ...
,
Tiruvallur Tiruvallur is a Grade I municipality and a fast developing city in the Indian state of Tamil Nadu. It is located on the banks of Coovum river about from downtown Chennai (Madras) and just 5 km from megacity border, in the western p ...
and
Maraimalai Nagar Maraimalai Nagar is a satellite town of Chennai, Chengalpattu district, Tamil Nadu, India. It is a municipality town in Chengalpattu district. It lies in the southern part of the Chennai metropolitan area around 50 km from downtown Chennai ...
had been undergoing rapid development and had to be incorporated under the CMDA planning strategy. Also, the planning bodies of other metropolises in India such as Bengaluru,
New Delhi New Delhi (, , ''Naī Dillī'') is the capital of India and a part of the National Capital Territory of Delhi (NCT). New Delhi is the seat of all three branches of the government of India, hosting the Rashtrapati Bhavan, Parliament House ...
and
Hyderabad Hyderabad ( ; , ) is the capital and largest city of the Indian state of Telangana and the ''de jure'' capital of Andhra Pradesh. It occupies on the Deccan Plateau along the banks of the Musi River (India), Musi River, in the northern part ...
had already redefined their respective metropolitan regions to include much larger areas and corresponding regional planning was being done. The CMA, however, has not been altered since it was first defined in 1974. The area was limited to which is among the smallest in the country. In July 2012, the CMDA suggested two options to the Government of Tamil Nadu for expanding the area: *The first option includes the whole of the Chennai district, Madhavaram, Ambattur, Poonamallee, Ponneri, Gummidipoondi, Uthukottai, and Thiruvallur taluks of the Tiruvallur district, and Alandur, Pallavaram, Tambaram, Sholinganallur, Chengalpattu, Thiruporur, and Sriperumbudur taluks of the Kancheepuram district extending up to . * The second option includes the whole of Chennai, Tiruvallur and Kancheepuram districts and the Arakkonam taluk of Ranipet district and extends to a total of . Chief planners of the CMDA have suggested that the second option is more feasible. Another planning model, similar to the
National Capital Region A capital region, also called a capital district or capital territory, is a region or district surrounding a capital city. It is not always the official term for the region, but may sometimes be used as an informal synonym. Capital regions can exis ...
was also examined by the CMDA. In order to plan for balanced regional development, developing a larger road network, implementing an integrated transport plan and identifying a Chennai Mega Region have become necessary. On 3 July 2017, the
Government of Tamil Nadu Government of Tamil Nadu is the subnational government for the Indian state of Tamil Nadu. It is seated at Fort St George, Chennai. The legislature of Tamil Nadu was bicameral until 1986, when it was replaced by a unicameral legislature, lik ...
's minister for housing and urban development, Udumalai K. Radhakrishnan announced its intention to expand the CMA to . The extension will cover all of Kancheepuram and Tiruvallur districts and Arakkonam taluk of Ranipet district, as proposed in July 2012. Having completed a feasibility study, a "strategic regional plan" was now required, and completion of the whole process was expected by July 2018. On 22 January 2018 the Government of Tamil Nadu issued order G.O. (Ms) No.13 to "declare the intention to include additional areas in the Chennai Metropolitan Planning Area" under section 2, clause (23-a) of the Tamil Nadu Town and Country Planning Act, 1971 (Tamil Nadu Act 35 of 1972). The additional areas to be included were as proposed by the CMDA in 2017. Under Tamil Nadu Act 35 the Tamil Nadu government is required to allow reasonable opportunity (two months according to §10.3) for inhabitants, local authorities and institutions in the area to comment upon or object to such an expansion proposals. Although less than 100 objections to the expansion plans were received, a
public interest litigation The chief instrument through which judicial activism has flourished in India is public interest litigation (PIL) or social action litigation (SAL). ''Public interest litigation'' (PIL) refers to litigation undertaken to secure public interest and de ...
action was launched at the Madras High Court in March 2018. In October 2022 the area of CMA was expanded five-fold to making it 4th largest Metropolitan city.


Notes


See also

*
Mumbai metropolitan area Mumbai Metropolitan Region (abbreviated to MMR and previously also as Greater Bombay Metropolitan Area), is a metropolitan area consisting of Mumbai (Bombay) and its satellite towns in the northern Konkan division, of the Maharashtra state in ...
*
Delhi metropolitan area The National Capital Region (NCR) is a planning region centred upon the National Capital Territory (NCT) of Delhi in India. It encompasses Delhi and several districts surrounding it from the states of Haryana, Uttar Pradesh and Rajasthan. The N ...
*
Kolkata metropolitan area Kolkata Metropolitan Area (abbreviated KMA; formerly Calcutta Metropolitan Area), also known as Greater Kolkata, is the urban agglomeration of the city of Kolkata in the Indian state of West Bengal. It is the third most populous metropolitan are ...
* List of metropolitan areas in Asia by population *
List of metropolitan areas in India This is a list of metropolitan areas by population in India. The 74th Amendment to the Indian Constitution defines a metropolitan area as: An area having a population of 10 Lakh or 1 Million or more, comprised in one or more districts and con ...
*
List of million-plus urban agglomerations in India India is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people. India consists of twenty-eight states and eight union territories. It is a home to ...
*
List of districts in Tamil Nadu by Human Development Index The average Human Development Index (HDI) for the state of Tamil Nadu in 1996 calculated by the government's State Planning Commission was 0.636. By 2001, the average HDI for the state calculated by the State Planning Commission had risen to 0.6 ...
*
List of urban agglomerations in Tamil Nadu In the 2011 Census of India, an urban agglomeration was defined as "An urban agglomeration is a continuous urban spread constituting a town and its adjoining outgrowths, or two or more physically contiguous towns together with or without outgrowth ...


References


External links


Chennai metropolitan area mapCDMA plan
{{coord missing, Tamil Nadu Metropolitan areas of Tamil Nadu Geography of Chennai