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&lt;div&gt;{{Short description|District in West Bengal, India}}&lt;br /&gt;
{{Use Indian English|date=January 2026}}&lt;br /&gt;
{{Use dmy dates|date=January 2026}}&lt;br /&gt;
{{Infobox settlement&lt;br /&gt;
| name                   = Kolkata district&lt;br /&gt;
| native_name            = &lt;br /&gt;
| other_name             = Calcutta district&lt;br /&gt;
| settlement_type        = [[List of districts of West Bengal|District]] of [[West Bengal]]&lt;br /&gt;
| image_skyline          = Kolkata Imgs.jpg&lt;br /&gt;
| imagesize              = 300&lt;br /&gt;
| image_caption          = Clockwise from top: [[Victoria Memorial (India)|Victoria Memorial]], [[St. Paul&#039;s Cathedral, Kolkata|St. Paul&#039;s Cathedral]], Central Business District, [[Rabindra Setu]], [[Trams in Kolkata|City Tram Line]], [[Vidyasagar Setu]]&lt;br /&gt;
| image_map              = Kolkata in West Bengal (India).svg&lt;br /&gt;
| mapsize                = 300&lt;br /&gt;
| map_caption            = Location of Kolkata district in West Bengal&lt;br /&gt;
| coordinates            = {{coord|22.5726723|N|88.3638815|E|format=dms|display=inline,title|region:IN-WB}}&lt;br /&gt;
| subdivision_type       = Country&lt;br /&gt;
| subdivision_name       = {{flag|India}}&lt;br /&gt;
| subdivision_type1      = [[States and union territories of India|State]]&lt;br /&gt;
| subdivision_name1      = {{flagicon image|Emblem of West Bengal (Banglarmukh) before 2018.png}} [[West Bengal]]&lt;br /&gt;
| subdivision_type2      = [[Administrative divisions of West Bengal|Division]]&lt;br /&gt;
| subdivision_name2      = [[Presidency division|Presidency]]&lt;br /&gt;
| seat_type              = Headquarters&lt;br /&gt;
| seat                   = [[Kolkata]]&lt;br /&gt;
| leader_title           = [[List of constituencies of the Lok Sabha|Lok Sabha constituencies]]&lt;br /&gt;
| leader_name            =  [[Kolkata Uttar (Lok Sabha constituency)|Kolkata Uttar]]&lt;br /&gt;
| leader_title1          = [[List of constituencies of the West Bengal Legislative Assembly|Vidhan Sabha constituencies]]&lt;br /&gt;
| leader_name1           = [[Chowranghee (Vidhan Sabha constituency)|Chowranghee]], [[Jorasanko (Vidhan Sabha constituency)|Jorasanko]], [[Shyampukur (Vidhan Sabha constituency)|Shyampukur]],&lt;br /&gt;
| total_type             = Total&lt;br /&gt;
| area_total_km2         = 206.08&lt;br /&gt;
| area_footnotes         = &lt;br /&gt;
| population_as_of       = 2011&lt;br /&gt;
| population_total       = 4496694&lt;br /&gt;
| population_footnotes   = &lt;br /&gt;
| population_urban       = &lt;br /&gt;
| population_density_km2 = auto&lt;br /&gt;
| demographics_type1     = Demographics&lt;br /&gt;
| demographics1_title1   = [[Literacy in India|Literacy]]&lt;br /&gt;
| demographics1_info1    = 98.67 per cent&lt;br /&gt;
| demographics1_title2   = [[Human sex ratio|Sex ratio]]&lt;br /&gt;
| demographics1_info2    = 990 [[male|♂]]/[[female|♀]]&lt;br /&gt;
| demographics_type2     = Languages&lt;br /&gt;
| demographics2_title1   = Official&lt;br /&gt;
| demographics2_info1    = [[Bengali language|Bengali]]&amp;lt;ref name=&amp;quot;wblangoff&amp;quot;&amp;gt;{{cite web|title=Fact and Figures|url=https://wb.gov.in/portal/web/guest/facts-and-figures;jsessionid=JzdD9RHb7aMY5esZPtcsIVLy|website=Wb.gov.in|access-date=5 July 2019}}&amp;lt;/ref&amp;gt;&amp;lt;ref&amp;gt;{{cite web|title=52nd Report of the Commissioner for Linguistic Minorities in India|url=http://nclm.nic.in/shared/linkimages/NCLM52ndReport.pdf|website=Nclm.nic.in|publisher=[[Ministry of Minority Affairs]]|access-date=5 July 2019|page=85|url-status=dead|archive-url=https://web.archive.org/web/20170525141614/http://nclm.nic.in/shared/linkimages/NCLM52ndReport.pdf|archive-date=25 May 2017}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
| demographics2_title2   = Additional&amp;amp;nbsp;official&lt;br /&gt;
| demographics2_info2    = [[English language|English]]&amp;lt;ref name=&amp;quot;wblangoff&amp;quot;/&amp;gt;&lt;br /&gt;
| timezone1              = [[Indian Standard Time|IST]]&lt;br /&gt;
| utc_offset1            = +05:30&lt;br /&gt;
| website                = {{URL|www.kmcgov.in}}&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
&#039;&#039;&#039;Kolkata district&#039;&#039;&#039; (formerly known as &#039;&#039;&#039;Calcutta district&#039;&#039;&#039;) is a district in the [[India]]n [[States and union territories of India|state]] of [[West Bengal]]. It only contains the entire [[city proper]] of [[Kolkata]], the [[capital city]] of the state and therefore it is a [[city district]]. It is the smallest district in the state and also the most densely populated district. Being a city district, the district itself is its own headquarters; it does not have further subdivisions like &#039;&#039;[[mahakuma]]s&#039;&#039; or [[Tehsil|blocks]] that exist in all other districts of the state nor does it have a district magistrate.&lt;br /&gt;
&lt;br /&gt;
==History==&lt;br /&gt;
[[File:Aatchala Bari - Barisha - Kolkata 2011-10-03 030278.JPG|thumb|250px|left|The remains of the Aatchala Bari at Barisha]]&lt;br /&gt;
During seventeenth century Sutanuti was a major wool-trading center where had flourished the Basak, Sett, and a group of Portuguese merchants.&amp;lt;ref name=&amp;quot;:0&amp;quot;&amp;gt;{{Cite web|last=Banka|first=Neha|date=25 August 2021|title=Explained: &#039;Calcutta does not have a birthday&#039;, but it has some markers of urbanisation|url=https://indianexpress.com/article/explained/calcutta-does-not-have-a-birthday-but-it-has-some-markers-of-urbanisation-7468418/|website=[[The Indian Express]]|language=en}}&amp;lt;/ref&amp;gt; In Dihi Kalikata, Armenian traders commanded significant influence.&amp;lt;ref&amp;gt;Birth of a Colonial City: Calcutta. Ranjit Sen&amp;lt;/ref&amp;gt; The first historical notice regarding Kolkata was found in [[Ain-i-Akbari]] of [[Abul Fazl]] in 1596. According to it, that Kalighat was a place within Saptagram, an old port on Hooghly River.&amp;lt;ref&amp;gt;{{Cite book |last=Bhaumik |first=Sudarshana |url=https://books.google.com/books?id=bKh4EAAAQBAJ |title=The Changing World of Caste and Hierarchy in Bengal: Depiction from the Mangalkavyas c. 1700–1931 |date=26 August 2022 |publisher=Taylor &amp;amp; Francis |isbn=978-1-000-64143-1 |pages=92 |language=en}}&amp;lt;/ref&amp;gt; With the decline of the once flourishing [[Saptagram]] port, traders and businessmen, such as the Basaks, the Sheths and others, started venturing southwards and settled in or developed places such as [[Gobindapur, Kolkata|Gobindapur]]. They set up a cotton and yarn market at [[Sutanuti]]. [[Chitpur]] was a weaving centre and [[Baranagar]] was another textile centre. [[Kalighat]] was a pilgrimage centre. Across the [[Hooghly River|Hooghly]], there were places such as [[Salkia]] and [[Betor]]. [[Kalikata]] was a lesser known place. While both Sutanuti and Gobindapur appear on old maps like Thomas Bowrey&#039;s of 1687 and George Herron&#039;s of 1690, Kalikata, situated between the two, is not depicted.&amp;lt;ref name=&amp;quot;history&amp;quot;&amp;gt;{{cite web |title=District Census Handbook Kolkata, Census of India 2011, Series 20, Part XII A |url=http://www.censusindia.gov.in/2011census/dchb/DCHB_A/19/1916_PART_A_DCHB_KOLKATA.pdf |access-date=20 February 2018 |work=Pages 6–10: The History |publisher=Directorate of Census Operations, West Bengal}}&amp;lt;/ref&amp;gt;&amp;lt;ref name = &amp;quot;Cotton&amp;quot;&amp;gt;Cotton, H.E.A., &#039;&#039;Calcutta Old and New&#039;&#039;, 1909/1980, pages 1, 11, General Printers and Publishers Pvt. Ltd.&amp;lt;/ref&amp;gt;&amp;lt;ref&amp;gt;Cotton, H.E.A., &#039;&#039;Calcutta Old and New&#039;&#039;, 1909/1980, page 3&amp;lt;/ref&amp;gt; &lt;br /&gt;
[[File:Jorasanko Thakur Bari.jpg|thumb|250px|[[Jorasanko Thakur Bari]], now [[Rabindra Bharati University]] |left]]  &lt;br /&gt;
Around early March 1698, the East India Company (EIC) proposed to the Roy Choudhurys that Dihi Kalikata be subrented to them.&amp;lt;ref name=&amp;quot;:3&amp;quot;&amp;gt;{{Cite book |last=Firminger |first=Walter Kelly |url=https://archive.org/details/dli.csl.8337 |title=The fifth report from the select committee of the house of commons on the affairs of the east India company |publisher=R. Cambray &amp;amp; Co. |year=1917 |volume=1 |location=Calcutta |pages=lxvi-lxviii |chapter=The Company becomes Zamindar}}&amp;lt;/ref&amp;gt;&amp;lt;ref name=&amp;quot;:72&amp;quot;&amp;gt;{{Cite journal |last=Hasan |first=Farhat |date=1992 |title=Indigenous Cooperation and the Birth of a Colonial City: Calcutta, c. 1698-1750 |url=https://www.jstor.org/stable/312717 |journal=Modern Asian Studies |volume=26 |issue=1 |pages=66–70 |doi=10.1017/S0026749X00015948 |issn=0026-749X |jstor=312717 |s2cid=146738069 |url-access=subscription}}&amp;lt;/ref&amp;gt; The offer was rejected since then-Zamindar (anon.) of the Roy Chowdhurys feared permanently losing the properties to a far-powerful client.&amp;lt;ref name=&amp;quot;:3&amp;quot; /&amp;gt;&amp;lt;ref name=&amp;quot;:72&amp;quot; /&amp;gt; This led the EIC to negotiate for the rent-rights outright and at the Mughal quarters; one Nathaniel Walsh was dispatched to Prince [[Azim-ush-Shan]], then-Viceroy of [[Bengal Subah]].&amp;lt;ref name=&amp;quot;:3&amp;quot; /&amp;gt;&amp;lt;ref name=&amp;quot;:4&amp;quot;&amp;gt;{{Cite book |last=Wilson |first=C. R. |url=https://archive.org/details/oldfortwilliamin01wilsuoft |title=Old Fort William In Bengal |year=1906 |volume=1 |pages=34–42}}&amp;lt;/ref&amp;gt;&amp;lt;ref name=&amp;quot;:72&amp;quot; /&amp;gt; The negotiations proved successful.&amp;lt;ref name=&amp;quot;:3&amp;quot; /&amp;gt; The zamindari rights, for Dihi Kalikata, Sutanuti and Govindapur, had been transferred to the Company  paying Choudhury total of 2000 Rupees.&amp;lt;ref&amp;gt;{{Citation |last=Bhattacharyya |first=Debjani |title=Geography&#039;s myth: The many origins of Calcutta |date=2013 |work=Unarchived Histories |url=https://www.taylorfrancis.com/chapters/edit/10.4324/9781315856698-13/geography-myth-debjani-bhattacharyya |access-date=22 April 2024 |publisher=Routledge |doi=10.4324/9781315856698-13 |doi-broken-date=12 July 2025 |isbn=978-1-315-85669-8}}&amp;lt;/ref&amp;gt; Subsequent to the fall of [[Siraj-ud-daulah]], the last independent [[Nawab of Bengal]], the English purchased 55 villages in 1758 from [[Mir Jafar]]. These villages were known en-bloc as &#039;&#039;[[Dihi Panchannagram]]&#039;&#039;.&amp;lt;ref name=&amp;quot;history&amp;quot;/&amp;gt;&lt;br /&gt;
&lt;br /&gt;
After the [[Treaty of Allahabad]], the [[East India Company]] was granted &#039;&#039;Diwani&#039;&#039; rights (the right to collect taxes), in 1765, in the eastern province of Bengal-Bihar-Odisha. In 1772, Kolkata became the capital of East India Company&#039;s territories, and in 1793, the English took full control of the city and the province. Development of Kolkata&#039;s infrastructure started and in the early 19th century, the marshes surrounding the city were drained. In the 19th century, Kolkata was the epicentre of the epoch-changing socio-cultural movement, the [[Bengali Renaissance|Bengal Renaissance]]. The 20th century unfolded historical events in Kolkata – the [[Swadeshi movement]], the first [[Partition of Bengal (1905)|partition of Bengal]] along communal lines, shifting of the national capital from Kolkata to Delhi in 1911 – and Kolkata emerged as an important hub of the [[Indian independence movement|independence movement]]. With the experience and memories of the [[Bengal famine of 1943]], the [[Direct Action Day|Great Calcutta Killings]], the final [[Partition of Bengal (1947)|partition of Bengal]], and [[Independence Day (India)|independence of the country]], Kolkata moved on to a new era of challenges, with millions of [[East Bengali refugees|refugees]] pouring in from neighbouring East Pakistan (later Bangladesh).&amp;lt;ref name=&amp;quot;history&amp;quot;/&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Before partition of Bengal, Kolkata had offered education and job opportunities to the people from East Bengal. Kolkata had taken in about a quarter of a million East Bengali migrants long before partition. After partition of Bengal, the number of refugees moving in from East Bengal were so high that large stretches of rural or semi urban habitation were transformed into towns, the density of population, particularly in areas with high refugee population, jumped by leaps. The outer limits of Kolkata were extended. The entire process of urbanisation was hastened. In the fifties 25% of the population of Metropolitan Kolkata were refugees. In 1975, a CMDA report suggested that there were 1,104 squatter colonies in West Bengal, out of which 510 were in Calcutta Metropolitan District.&amp;lt;ref&amp;gt;{{cite web| url = https://bangalnama.wordpress.com/2009/08/31/the-refugee-city-partition-and-kolkata%E2%80%99s-postcolonial-landscape/ |title = The Refugee City: Partition and Kolkata&#039;s Post-colonial landscape| publisher= Bangalnama, 31 August 2009| access-date = 13 March 2018}}&amp;lt;/ref&amp;gt; In 1981, a refugee rehabilitation committee set up by the state government put the figures for refugees in the state at 8 million. The break up for Kolkata is not available. The central government had decided that 25 March 1971 was the cut off date for entry of refugees from former East Pakistan into India and so, all those coming in after that date are either immigrants or infiltrators – there were no more refugees, at least officially/legally.&amp;lt;ref&amp;gt;{{cite news| url = https://timesofindia.indiatimes.com/city/kolkata/4m-refugees-entered-West-Bengal-after-1971/articleshow/660584.cms|title = 4m refugees entered West Bengal after 1971 |work = Nirmalya Banerjee |date = 11 August 2000 | publisher= The Times of India, 11 August 2000| access-date = 13 March 2018}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The socio-economic conditions that led to the growth of Kolkata, were urbanising a much larger territory. Right form the 16th century, a number of townships, based on trade and commerce, had sprung up along both banks of the Hooghly. None of these townships withered away as Kolkata gained supremacy, rather they got integrated with the core of the city. In 1951, census operations in West Bengal first recognised a continuous industrial area stretching from [[Bansberia]] to [[Uluberia]] on the west bank of the [[Hooghly River|Hooghly]], and from [[Kalyani, West Bengal|Kalyani]] to [[Budge Budge]] on the east bank. It was ultimately recognised as the Kolkata urban agglomeration, with the city as its core.&amp;lt;ref name= &amp;quot;kolkata1&amp;quot;&amp;gt;Chakraborty, Satyesh C., &amp;quot;The Growth of Calcutta in the Twentieth Century&amp;quot;, in “Calcutta, The Living City” Vol II, Edited by Sukanta Chaudhuri, Pages 4–6, First published 1990, 2005 edition, {{ISBN|0-19-563697-X}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Kolkata has always been a city of migrants. They are the people who have made the city so large. In the first half of the 20th century the largest group of migrants were the working-class people from Bihar. After 1947, they were overtaken in numbers by the refugees from East Pakistan. A comparatively lesser number of people from the surrounding areas have migrated to the city, because a huge population commutes to the city for work and returns to their villages. They are not counted in the census data for Kolkata. The promise of a better quality of life may have been an initial attraction for the migrants, but bulk of the poorer sections soon realised that poverty in Kolkata was as severe and dehumanising as in the villages they left behind. However, many of them found opportunities of income in the urban economy. Some of them managed a place in  industry, because of the preferential treatment they got as a result of people in their community vouching for them. A 1976 survey revealed that the proportion of workers from outside West Bengal were 71% in the jute industry, 58% in textile mills and 73% in iron and steel units. The [[Chamars]] from the Hindi heartland, many of whom work in the leather industry, have been here for more than a century. As per the 1951 census, only 33.2% of Kolkata&#039;s inhabitants were city-born. The rest, including a small group of foreigners, were migrants. 12.3% came from elsewhere in West Bengal, 26.3% from other states in India and 29.6% were refugees from East Pakistan.&amp;lt;ref name= &amp;quot;kolkata1&amp;quot;/&amp;gt;&amp;lt;ref&amp;gt;Chatterjee, Partha, &amp;quot;Political Culture of Calutta&amp;quot;, in “Calcutta, The Living City” Vol II, Edited by Sukanta Chaudhuri, Page 29, First published 1990, 2005 edition, {{ISBN|0-19-563697-X}}&amp;lt;/ref&amp;gt;&amp;lt;ref&amp;gt;Bandyopadhyay, Raghab, &amp;quot;The Inheritors: Slum and Pavement Life in Calcutta&amp;quot;, in “Calcutta, The Living City” Vol II, Edited by Sukanta Chaudhuri, Page 79, First published 1990, 2005 edition, {{ISBN|0-19-563697-X}}&amp;lt;/ref&amp;gt;&amp;lt;ref&amp;gt;Chatterjee, Nilanjana, &amp;quot;The East Bengal Refugees: A Lesson in Survival&amp;quot;,  in “Calcutta, The Living City” Vol II, Edited by Sukanta Chaudhuri, Page 70, First published 1990, 2005 edition, {{ISBN|0-19-563697-X}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
This brings us on to another aspect of the city. The slum population has grown at a much faster rate than the total city population, thereby indicating a growing ratio of the impoverished working population of the city. &amp;quot;Geographically, Calcutta is in a unique position vis-à-vis the whole of eastern India. The growth and prosperity of the region must involve Calcutta. How it will grow… is the great question to be answered.&amp;quot;&amp;lt;ref&amp;gt;Ghosh, Ambikaprasad Ghosh, assisted by Chatterjee, Kaushik, &#039;&#039;The Demography of Calcutta&#039;&#039;, in “Calcutta, The Living City” Vol II, Edited by Sukanta Chaudhuri, Page 57, First published 1990, 2005 edition, {{ISBN|0-19-563697-X}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
 &lt;br /&gt;
[[P. Thankappan Nair]] writes, “The six square miles within the [[Maratha Ditch]] (the original core of Calcutta) thus came to have the world’s highest density of population in that age. It was a heterogeneous population, sinking differences of caste, creed and colour under the sheer compulsion to interact and survive together. The compulsion has grown stronger ever since, as has the spirit it fostered. Hence Calcutta did not disintegrate when the capital was shifted to New Delhi in 1912. It has kept growing and living by the ever-renewed confidence and vitality of its inherent human forces.”&amp;lt;ref&amp;gt;Nair, P.Thankappan, &#039;&#039;The Growth and Development of Old Calcutta&#039;&#039;, in &#039;&#039;Calcutta, the Living City&#039;&#039;, Vol. I, p. 23, Edited by Sukanta Chaudhuri, Oxford University Press, 1995 edition.&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
==Geography==&lt;br /&gt;
[[File:Victoria Memorial and Trees, Calcutta, India.jpg|thumb|left|250px|[[Victoria Memorial, Kolkata|Victoria Memorial]]]]&lt;br /&gt;
Kolkata district lies between 22.037’ and 22.030’ North latitude and 88.023’ and 88.018’ East longitude. It occupies the east bank of the [[Hooghly River|Hooghly]] in the lower [[Ganges Delta]]. The alluvial plain has an average elevation of 6.4 metres (17 feet) above mean sea level. A large part of the district comprises land reclaimed from [[wetland]]. The existing [[East Kolkata Wetlands]] has been designated a “wetland of international importance” by the [[Ramsar Convention]].&amp;lt;ref name=&amp;quot;geography&amp;quot;&amp;gt;{{cite web| url = http://www.censusindia.gov.in/2011census/dchb/DCHB_A/19/1916_PART_A_DCHB_KOLKATA.pdf |title = District Census Handbook Kolkata, Census of India 2011, Series 20, Part XII A |work = Page 12: Administrative set-up of the district, Page 19: Physical features | publisher= Directorate of Census Operations, West Bengal| access-date = 20 February 2018}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
[[File:Kolkata Shyambazar Panchmatha2.jpg|thumb|250px|Shyambazar five point crossing with statue of [[Subhas Chandra Bose|Netaji Subhas]]|left]]&lt;br /&gt;
&lt;br /&gt;
Kolkata district is bounded by the [[North 24 Parganas district]] on the north and on the east, [[South 24 Parganas district]] on the south and [[Howrah district]], across the Hooghly, on the west.&amp;lt;ref name=&amp;quot;geography&amp;quot;/&amp;gt;&lt;br /&gt;
&lt;br /&gt;
In terms of area, it is the smallest amongst all the districts of West Bengal but has the highest density of population. It is the only district in the state with cent per cent urban population. It has the lowest [[Scheduled Castes and Scheduled Tribes|Scheduled Caste]] (5.38%) and [[Scheduled Castes and Scheduled Tribes|Scheduled Tribe]] (0.24%) population in the state. Kolkata district is the only district in the state with a negative growth rate (−1.7%) for the 2001–2011 decade. Kolkata district has the second highest literacy rate (86.3%) in the state.&amp;lt;ref name= &amp;quot;highlights&amp;quot;&amp;gt;{{cite web| url = http://www.censusindia.gov.in/2011census/dchb/1916_PART_B_DCHB_KOLKATA.pdf |title = District Census Handbook Kolkata, Census of India 2011, Series 20, Part XII B |work = Page 25: District Highlights 2011 census, Pages 26–27: Important Statistics | publisher= Directorate of Census Operations, West Bengal| access-date = 20 February 2018}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[Kolkata metropolitan area]], extending over an area of 1851.41&amp;amp;nbsp;km&amp;lt;sup&amp;gt;2&amp;lt;/sup&amp;gt;, is one of the six metropolitan areas in India. It includes the entire [[Kolkata Municipal Corporation]] area.&amp;lt;ref&amp;gt;{{cite web| url = https://www.kmdaonline.org/home/about_us| archive-url = https://web.archive.org/web/20160118080458/http://www.kmdaonline.org/home/about_us| url-status = usurped| archive-date = 18 January 2016|title = Kolkata Metropolitan Development Authority |work = About KMDA | publisher= KMDA| access-date = 20 February 2018}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The Kolkata district collector is responsible for several citizen centric services which are neither being provided by the KMC nor Kolkata Police.&amp;lt;ref&amp;gt;{{cite news| url = https://timesofindia.indiatimes.com/city/kolkata/Kolkata-district-collector-to-oversee-key-city-services/articleshow/16776041.cms |title = Kolkata district collector to oversee key city services |newspaper = The Times of India |date = 12 October 2012 | publisher=The Times of India, 12 October 2012 | access-date = 20 February 2018}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
==Demographics==&lt;br /&gt;
{{See also|List of districts of West Bengal#Demographics| List of West Bengal districts ranked by literacy rate}}&lt;br /&gt;
&lt;br /&gt;
===Population===&lt;br /&gt;
{{Historical populations&lt;br /&gt;
| 1901 | 1009853&lt;br /&gt;
| 1911 | 1117966&lt;br /&gt;
| 1921 | 1158497&lt;br /&gt;
| 1931 | 1289461&lt;br /&gt;
| 1941 | 2352399&lt;br /&gt;
| 1951 | 2956475&lt;br /&gt;
| 1961 | 3351250&lt;br /&gt;
| 1971 | 3727020&lt;br /&gt;
| 1981 | 4126846&lt;br /&gt;
| 1991 | 4399819&lt;br /&gt;
| 2001 | 4572876&lt;br /&gt;
| 2011 | 4496694&lt;br /&gt;
| source = [[Census of India]]&amp;lt;ref&amp;gt;{{Cite web|title= A-02: Decadal variation in population 1901-2011, West Bengal, India, 2011|url=https://censusindia.gov.in/nada/index.php/catalog/43352/download/47040/19%20A-2%20West%20Bengal.pdf|website=www.censusindia.gov.in}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
According to the [[2011 census of India|2011 census]] Kolkata district has a [[Demographics of India|population]] of 4,496,694,&amp;lt;ref name=districtcensus&amp;gt;{{cite web | url = http://www.census2011.co.in/district.php | title = District Census 2011 | access-date = 30 September 2011 | year = 2011 | publisher = Census2011.co.in}}&amp;lt;/ref&amp;gt; roughly equal to the nation of [[Croatia]]&amp;lt;ref name=&amp;quot;cia&amp;quot;&amp;gt;{{cite web | author = US Directorate of Intelligence | title = Country Comparison:Population | url = https://www.cia.gov/library/publications/the-world-factbook/rankorder/2119rank.html | archive-url = https://web.archive.org/web/20070613004507/https://www.cia.gov/library/publications/the-world-factbook/rankorder/2119rank.html | url-status = dead | archive-date = 13 June 2007 | access-date = 1 October 2011 | quote = Croatia 4,483,804 July 2011 est.&lt;br /&gt;
 }}&amp;lt;/ref&amp;gt; or the US state of [[Louisiana]].&amp;lt;ref&amp;gt;{{cite web&lt;br /&gt;
 |url=http://2010.census.gov/2010census/data/apportionment-pop-text.php &lt;br /&gt;
 |title=2010 Resident Population Data &lt;br /&gt;
 |publisher=U. S. Census Bureau &lt;br /&gt;
 |access-date=30 September 2011 |quote=Louisiana 4,533,372 &lt;br /&gt;
 |url-status=dead &lt;br /&gt;
 |archive-url=https://web.archive.org/web/20131019160532/http://2010.census.gov/2010census/data/apportionment-pop-text.php &lt;br /&gt;
 |archive-date=19 October 2013 }}&amp;lt;/ref&amp;gt; This gives it a ranking of 35th in India (out of a total of [[Districts of India|640]]).&amp;lt;ref name=districtcensus/&amp;gt; The district has a population density of {{convert| 24252 |PD/sqkm|PD/sqmi}} .&amp;lt;ref name=districtcensus/&amp;gt; Its [[Family planning in India|population growth rate]] over the decade 2001–2011 was −1.88%.&amp;lt;ref name=districtcensus/&amp;gt; Kolkata has a [[sex ratio]] of 899 [[Women in India|females]] for every 1000 males,&amp;lt;ref name=districtcensus/&amp;gt; and a [[Literacy in India|literacy rate]] of 87.14%. Scheduled Castes and Scheduled Tribes make up 5.38% and 0.24% of the population respectively.&amp;lt;ref name=districtcensus/&amp;gt;&lt;br /&gt;
&lt;br /&gt;
===Language===&lt;br /&gt;
{{Pie chart&lt;br /&gt;
| thumb = right&lt;br /&gt;
| caption = Languages spoken in Kolkata city (2011 census)&amp;lt;ref&amp;gt;{{cite web |url=https://censusindia.gov.in/2011census/C-16/DDW-C16-STMT-MDDS-1900.XLSX |format=XLDX |title=India Census 2011 : C-16 Population By Mother Tongue |website=Censusindia.gov.in |access-date=16 January 2022}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
| label1 = [[Bengali language|Bengali]]&lt;br /&gt;
| value1 = 61.45&lt;br /&gt;
| label2 = [[Hindi language|Hindi]]&lt;br /&gt;
| color1 = Red&lt;br /&gt;
| value2 = 23.00&lt;br /&gt;
| label3 = [[Urdu language|Urdu]]&lt;br /&gt;
| color2 = Orange&lt;br /&gt;
| value3 = 13.03&lt;br /&gt;
| label4 = [[Odia language|Oriya]]&lt;br /&gt;
| color3 = Green&lt;br /&gt;
| value4 = 0.58&lt;br /&gt;
| label5 = [[Gujarati language|Gujarati]]&lt;br /&gt;
| value5 = 0.57&lt;br /&gt;
| label6 = [[Punjabi language|Punjabi]]&lt;br /&gt;
| value6 = 0.35&lt;br /&gt;
| label7 = [[English language|English]]&lt;br /&gt;
| value7 = 0.2&lt;br /&gt;
| label8 = [[Nepali language|Nepali]]&lt;br /&gt;
| value8 = 0.18&lt;br /&gt;
| label9 = [[Tamil language|Tamil]]&lt;br /&gt;
| value9 = 0.14&lt;br /&gt;
| label10 = [[Telugu language|Telugu]]&lt;br /&gt;
| value10 = 0.12&lt;br /&gt;
| label11 = [[Malayalam language|Malayalam]]&lt;br /&gt;
| value11 = 0.10&lt;br /&gt;
| label12 = Others&lt;br /&gt;
| value12 = 0.44&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
|+ &#039;&#039;Kolkata city linguistic diversity as per (2011 census)&#039;&#039;&amp;lt;ref&amp;gt;[https://censusindia.gov.in/2011census/C-16/DDW-C16-STMT-MDDS-1900.XLSX 2011 census] censusindia.gov.in {{Webarchive|url=https://web.archive.org/web/20210115221623/https://censusindia.gov.in/2011census/C-16/DDW-C16-STMT-MDDS-1900.XLSX |date=15 January 2021 }}&amp;lt;/ref&amp;gt;&lt;br /&gt;
|-&lt;br /&gt;
! Languages&lt;br /&gt;
! Population&lt;br /&gt;
|-&lt;br /&gt;
| [[Bengali language|Bengali]]&lt;br /&gt;
| 2,763,291&lt;br /&gt;
|-&lt;br /&gt;
| [[Hindi language|Hindi]]&lt;br /&gt;
| 1,034,363&lt;br /&gt;
|-&lt;br /&gt;
| [[Urdu language|Urdu]]&lt;br /&gt;
| 586,234&lt;br /&gt;
|-&lt;br /&gt;
| [[Odia language|Oriya]]&lt;br /&gt;
| 26,158&lt;br /&gt;
|-&lt;br /&gt;
| [[Gujarati language|Gujarati]]&lt;br /&gt;
| 25,667&lt;br /&gt;
|-&lt;br /&gt;
| [[Punjabi language|Punjabi]] &lt;br /&gt;
| 15,913&lt;br /&gt;
|-&lt;br /&gt;
| [[English language|English]] &lt;br /&gt;
| 8,932&lt;br /&gt;
|-&lt;br /&gt;
| [[Nepali language|Nepali]]&lt;br /&gt;
| 8,089&lt;br /&gt;
|-&lt;br /&gt;
| [[Tamil language|Tamil]]&lt;br /&gt;
| 6,508&lt;br /&gt;
|-&lt;br /&gt;
| [[Telugu language|Telugu]]&lt;br /&gt;
| 5,330&lt;br /&gt;
|-&lt;br /&gt;
| [[Malayalam language|Malayalam]]&lt;br /&gt;
| 4,434&lt;br /&gt;
|-&lt;br /&gt;
| [[Sindhi language|Sindhi]]&lt;br /&gt;
| 3,724&lt;br /&gt;
|-&lt;br /&gt;
| Others &lt;br /&gt;
| 28,607&lt;br /&gt;
|-&lt;br /&gt;
| Total&lt;br /&gt;
| 4,496,694&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
[[Bengali language|Bengali]] is the most spoken language, with 61.45% of the population. Another 22.19% speak [[Hindi]] and 13.04% [[Urdu]]. [[Odia language|Odia]], [[Gujarati language|Gujarati]], [[Punjabi language|Punjabi]], [[Marwari language|Marwari]] and [[Bhojpuri language|Bhojpuri]] are also spoken by more than 10,000 people.&amp;lt;ref name=&amp;quot;languages&amp;quot;&amp;gt;{{Cite web |title=Table C-16 Population by Mother Tongue: West Bengal |url=https://censusindia.gov.in/nada/index.php/catalog/10226/download/13338/DDW-C16-STMT-MDDS-1900.XLSX |website=www.censusindia.gov.in |publisher=[[Registrar General and Census Commissioner of India]]}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The proportion of persons having Bengali as a mother tongue in Kolkata district decreased from 63.8% in 1961 to 59.9% in 1971 to 58.5% in 1981 and then increased to 63.6% in 1991, but again dropped to 62.0% in 2001 and dropped further to 61.5% in 2011. The proportion of persons having Hindi as mother tongue increased from 19.3% in 1961 to 23.2% in 1971, but then started declining to 22.2% in 1981, 20.9% in 1991 and 20.3% in 2001, but rose to 22.2% in 2011. The proportion of persons having Urdu as mother tongue has increased from 9.0% in 1961 to 13.6% in 2001 but decreased to 13.0% in 2011. The proportion of persons having English as mother tongue has dwindled from 1.0% in 1961 to 0.2% in 2001 and now only 8,900 people speak English as mother tongue, mainly Anglo-Indians.&amp;lt;ref name=language2001&amp;gt;{{cite web| url = http://www.censusindia.gov.in/2011census/dchb/DCHB_A/19/1916_PART_A_DCHB_KOLKATA.pdf |title = District Census Handbook Kolkata, Census of India 2011, Series 20, Part XII A |work = Pages 65–66: Mother tongue | publisher= Directorate of Census Operations, West Bengal| access-date = 15 February 2018}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
===Religion===&lt;br /&gt;
{{Pie chart&lt;br /&gt;
| thumb = right&lt;br /&gt;
| caption = Religion in Kolkata district (2011)&amp;lt;ref name=&amp;quot;religion&amp;quot;/&amp;gt;&lt;br /&gt;
| label1 = [[Hinduism|Hindu]]&lt;br /&gt;
| value1 = 76.51&lt;br /&gt;
| color1 = DarkOrange&lt;br /&gt;
| label2 = [[Islam|Muslim]]&lt;br /&gt;
| value2 = 20.6&lt;br /&gt;
| color2 = Green&lt;br /&gt;
| label3 = [[Irreligion|No religion]]&lt;br /&gt;
| value3 = 1.09&lt;br /&gt;
| color3 = Beige&lt;br /&gt;
| label4 = [[Christians|Christian]]&lt;br /&gt;
| value4 = 0.88&lt;br /&gt;
| color4 = DodgerBlue&lt;br /&gt;
| label5 = [[Jainism|Jain]]&lt;br /&gt;
| value5 = 0.47&lt;br /&gt;
| color5 = DeepPink&lt;br /&gt;
| label6 = [[Sikhism|Sikh]]&lt;br /&gt;
| value6 = 0.31&lt;br /&gt;
| color6 = OrangeRed&lt;br /&gt;
| label7 = [[Buddhism|Buddhist]]&lt;br /&gt;
| value7 = 0.11&lt;br /&gt;
| color7 = Yellow&lt;br /&gt;
| label8 = Other religions&lt;br /&gt;
| value8 = 0.03&lt;br /&gt;
| color8 = Grey&lt;br /&gt;
}}&lt;br /&gt;
{| class=&amp;quot;wikitable sortable&amp;quot;&lt;br /&gt;
|+Religion in Kolkata district&lt;br /&gt;
!Religion&lt;br /&gt;
!Population (1941)&amp;lt;ref name=&amp;quot;1941religion&amp;quot;&amp;gt;{{cite web |title=CENSUS OF INDIA, 1941 VOLUME VI BENGAL PROVINCE |url=https://dspace.gipe.ac.in/xmlui/bitstream/handle/10973/37365/GIPE-020591.pdf?sequence=3&amp;amp;isAllowed=y |access-date=13 August 2022}}&amp;lt;/ref&amp;gt;{{rp|75}}&lt;br /&gt;
!Percentage (1941)&lt;br /&gt;
!Population (2011)&amp;lt;ref name=&amp;quot;religion&amp;quot;&amp;gt;{{Cite web |date=2011 |title=Table C-01 Population by Religion: West Bengal |url=https://censusindia.gov.in/nada/index.php/catalog/11396/download/14509/DDW19C-01%20MDDS.XLS |website=censusindia.gov.in |publisher=[[Registrar General and Census Commissioner of India]]}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
!Percentage (2011)&lt;br /&gt;
|-&lt;br /&gt;
|[[Hinduism]] [[File:Om.svg|16x16px]]&lt;br /&gt;
|1,551,512&lt;br /&gt;
|73.57%&lt;br /&gt;
|3,440,290&lt;br /&gt;
|76.51%&lt;br /&gt;
|-&lt;br /&gt;
|[[Islam]] [[File:Star_and_Crescent.svg|15x15px]]&lt;br /&gt;
|497,535&lt;br /&gt;
|23.59%&lt;br /&gt;
|926,414&lt;br /&gt;
|20.60%&lt;br /&gt;
|-&lt;br /&gt;
|[[Christianity in West Bengal|Christianity]] [[File:Christian cross.svg|21x21px]]&lt;br /&gt;
|16,431&lt;br /&gt;
|0.78%&lt;br /&gt;
|39,758&lt;br /&gt;
|0.88%&lt;br /&gt;
|-&lt;br /&gt;
|Others{{efn|Including [[Jainism]], [[Christianity]], [[Buddhism]], [[Zoroastrianism]], [[Judaism]], [[Ad-Dharmi]]s, or not stated}}&lt;br /&gt;
|43,413&lt;br /&gt;
|2.06%&lt;br /&gt;
|90,232&lt;br /&gt;
|2.01%&lt;br /&gt;
|-&lt;br /&gt;
|&#039;&#039;&#039;Total Population&#039;&#039;&#039;&lt;br /&gt;
|&#039;&#039;&#039;2,108,891&#039;&#039;&#039;&lt;br /&gt;
|&#039;&#039;&#039;100%&#039;&#039;&#039;&lt;br /&gt;
|&#039;&#039;&#039;4,496,694&#039;&#039;&#039;&lt;br /&gt;
|&#039;&#039;&#039;100%&#039;&#039;&#039;&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
The small minorities were [[Jainism in Bengal|Jains]], who numbered 21,178 and formed 0.5% of the population. [[Sikhs]] numbered 13,849 and formed 0.3% of the population. [[Bengali Buddhists|Buddhists]] numbered 4,771 and formed 0.1% of the population. Persons following other religions numbered 1,452. Persons not stating religion numbered 48,982 and formed 1.1% of the population.&amp;lt;ref name=&amp;quot;religion2011&amp;quot;&amp;gt;{{cite web| url = http://www.censusindia.gov.in/2011census/dchb/DCHB_A/19/1916_PART_A_DCHB_KOLKATA.pdf |title = District Census Handbook Kolkata, Census of India 2011, Series 20, Part XII A |work = Page 64: religion | publisher= Directorate of Census Operations, West Bengal| access-date = 15 February 2018}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The proportion of Hindus in Kolkata district decreased from 83.9% in 1961 to 76.5% in 2011. During the same period Muslims increased from 12.8% to 20.6%.&amp;lt;ref name=religion2011/&amp;gt;&lt;br /&gt;
&lt;br /&gt;
==Economy==&lt;br /&gt;
===Livelihood===&lt;br /&gt;
[[File:PrincepGhat.jpg|thumb|250px|right|[[Prinsep Ghat]] with [[Vidyasagar Setu]] in the background]]&lt;br /&gt;
As per the 2011 census, Kolkata district has 1,795,740 total workers (main and marginal) forming 39.93% of the district population. The remaining population of 2,700,954 (60.07%) belongs to the non-workers category. While amongst the males 59.93% are total workers and 40.07% are non-workers, amongst the females 17.91% are total workers and 82.09% are non-workers.&amp;lt;ref name=&amp;quot;livelihood&amp;quot;&amp;gt;{{cite web| url = http://www.censusindia.gov.in/2011census/dchb/DCHB_A/19/1916_PART_A_DCHB_KOLKATA.pdf |title = District Census Handbook Kolkata, Census of India 2011, Series 20, Part XII A |work = Table 30, Page 71: Number and percentage of main workers, marginal workers and non-workers by sex in Kolkata (M.Corp), 2011, Table 35, Page 72: Distribution of workers by sex in four categories of economic activities in towns, 2011 | publisher= Directorate of Census Operations, West Bengal| access-date = 20 February 2018}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
94.61% of the total workers in urban Kolkata earn their livelihood as &#039;&#039;other workers&#039;&#039;, followed by 3.81% as &#039;&#039;household workers&#039;&#039;. Only 0.89% of total workers are engaged as &#039;&#039;cultivators&#039;&#039; and 0.69% are engaged as &#039;&#039;agricultural labourers&#039;&#039;.&amp;lt;ref name=&amp;quot;livelihood&amp;quot;/&amp;gt; The type of workers that come under the category of “other workers” include all government servants, municipal employees, teachers, factory workers, plantation workers, information technology workers, those engaged in trade, commerce, business, transport, banking, mining, construction, political or social work, priests, entertainment artists, and so on.&amp;lt;ref&amp;gt;{{cite web| url = http://www.censusindia.gov.in/2011census/dchb/DCHB_A/19/1916_PART_A_DCHB_KOLKATA.pdf |title = District Census Handbook Kolkata, Census of India 2011, Series 20, Part XII A |work = page 49: Census Concepts and Definitions | publisher= Directorate of Census Operations, West Bengal| access-date = 20 February 2018}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
===Infrastructure===&lt;br /&gt;
&#039;&#039;&#039;Power supply&#039;&#039;&#039;: In 1895, the Government of Bengal passed the Calcutta Electric Lighting Act and in 1897 Kilburn &amp;amp; Co., as agents of The Indian Electric Company Limited, secured the licence for electric lighting in Kolkata. The company soon changed its name to [[CESC Limited|Calcutta Electric Supply Corporation]]. It commissioned the first thermal power plant in India, at Emambagh Lane, near [[Prinsep Ghat]], in 1899. The switching over from horse-drawn carriages to electricity by [[Calcutta Tramways Company]] in 1902, provided further impetus to the rise in power consumption. The years of power shortage in the 1970s and 1980s, have been left behind. Now, CESC serves 2.8 million consumers. Total electric consumption in Kolkata district has gone up from 6,424 million KWH in 2006–07 to 8,135 million KWH in 2010–11.&amp;lt;ref&amp;gt;{{cite web| url = http://www.censusindia.gov.in/2011census/dchb/DCHB_A/19/1916_PART_A_DCHB_KOLKATA.pdf |title = District Census Handbook Kolkata, Census of India 2011, Series 20, Part XII A |work = Pages 40–41: Electricity and Power | publisher= Directorate of Census Operations, West Bengal| access-date = 20 February 2018}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&#039;&#039;&#039;Water supply&#039;&#039;&#039;: Newspaper reports, quoting KMC officials, say that in 2023 water demand from KMC was 360 million gallons per day and on an average, it supplied 300 mgd. 94 per cent of the city is supplied piped water, almost all of it free. The city is serviced by a 5,000&amp;amp;nbsp;km network of pipes.&amp;lt;ref&amp;gt;{{cite web| url = http://www.business-standard.com/article/economy-policy/kolkata-assumes-domestic-water-supply-is-free-109122400082_1.html|title = Kolkata assumes domestic water supply is free |work = Devjyot Ghosal  | publisher= Business Standard, 20 January 2013| access-date = 20 February 2018}}&amp;lt;/ref&amp;gt; As per KMC, it has 5 water treatment plants at Palta, Watgunge, Jorabagan, Dhapa and Garden Reach.&amp;lt;ref&amp;gt;{{cite web| url = https://www.kmcgov.in/KMCPortal/jsp/WaterSupply.jsp|title =  Kolkata Municipal Corporation |work =  Water Supply| publisher= KMC| access-date = 20 February 2018}}&amp;lt;/ref&amp;gt; There are reports that officially 15% of Kolkata&#039;s core water supply comes from ground water, in reality 25–30% of water used in households is ground water.&amp;lt;ref&amp;gt;{{cite web| url = https://www.thethirdpole.net/2015/11/11/kolkata-a-water-rich-city-turning-water-poor/|title = Kolkata, a water-rich city is turning water-poor |work = Jayanta Basu, 11 November 2015 | publisher= thethirdpole.net | access-date = 20 February 2018}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&#039;&#039;&#039;Roads&#039;&#039;&#039;: An estimated 6% of Kolkata&#039;s area is under roads, whereas a standard modern city demands 25–30% of the area be under roads.&amp;lt;ref&amp;gt;{{cite web| url = http://www.indiagovernance.gov.in/files/kolkata_municipal.pdf|title =  Kolkata Municipal Corporation (KMC)|work =  Page 3: City roads| publisher= KMC| access-date = 20 February 2018}}&amp;lt;/ref&amp;gt; &#039;&#039;Pucca&#039;&#039; (surfaced) road construction started in Kolkata only after 1839, and pavements were provided along the main roads only to facilitate erection of gas lights.&amp;lt;ref name=&amp;quot;road&amp;quot;&amp;gt;{{cite web| url = http://www.censusindia.gov.in/2011census/dchb/DCHB_A/19/1916_PART_A_DCHB_KOLKATA.pdf |title = District Census Handbook Kolkata, Census of India 2011, Series 20, Part XII A |work = Page 33: Transport, Page 40: Kolkata Roads| publisher= Directorate of Census Operations, West Bengal| access-date = 20 February 2018}}&amp;lt;/ref&amp;gt; In 2010–11 KMC maintained 1,909&amp;amp;nbsp;km of roads (1,670&amp;amp;nbsp;km surfaced and 239&amp;amp;nbsp;km unsurfaced). In 2020, the number of registered motor vehicles (including two and three wheelers) on the roads of Kolkata was 1024,000.&amp;lt;ref name=&amp;quot;road&amp;quot;/&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&#039;&#039;&#039;Drainage&#039;&#039;&#039;: Kolkata district was traditionally drained by two channels and various minor water ways. Human efforts tried to supplement the natural system. [[William Tolly]] tried to develop an eastward drainage-cum-communication channel by excavating the almost dead bed of the [[Adi Ganga]]. The 27&amp;amp;nbsp;km long Tolly&#039;s Nullah was completed in 1777. The Lake Channel was cut through the Salt Lake later on. Some of the other channels were; Beliaghata Canal (1800), Circular Canal from Entally to Hooghly river (1820), Bhangor Khal (1897–98) and the 16&amp;amp;nbsp;km long Krishnapur Khal, a navigational channel connecting Kolkata with Nona-Gang-Kulti Gang in South 24 Parganas (1910). Since 1742 the [[Bidyadhari River|Bidyadhari]] served as an outlet for the drainage of the city, but with deterioration of the [[Jamuna River (West Bengal)|Jamuna]], Bidyadhari lost much of its fresh water flow. Dr. Birendranath Dey renovated and revived the Bidyadhari in 1943.&amp;lt;ref&amp;gt;{{cite web| url = http://www.censusindia.gov.in/2011census/dchb/DCHB_A/19/1916_PART_A_DCHB_KOLKATA.pdf |title = District Census Handbook Kolkata, Census of India 2011, Series 20, Part XII A | work=Pages 20–21: Drainage |publisher = Directorate of Census Operations, West Bengal| access-date = 20 February 2018}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
Kolkata was pioneer in introducing the underground drainage system in 1878. There are 88&amp;amp;nbsp;km of man-entry big sewers and 92&amp;amp;nbsp;km of non-man entry brick sewers.&amp;lt;ref&amp;gt;{{cite web| url = http://www.indiagovernance.gov.in/files/kolkata_municipal.pdf|title =  Kolkata Municipal Corporation (KMC)|work =  Page 4: Drainage | publisher= KMC| access-date = 20 February 2018}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&#039;&#039;&#039;Eco system&#039;&#039;&#039;: Kolkata is a highly polluted district. According to an Institute of Ecological Exploration Report, in 1984, there are only 21 trees per km in Kolkata, far below the standard mark of 100 trees per km. The per capita open space at 20&amp;amp;nbsp;feet&amp;lt;sup&amp;gt;2&amp;lt;/sup&amp;gt; is too low. With these handicaps, the smoke from vehicles and industrial units, coupled with winter fogs, create a polluted environment. Noise pollution levels are also high. The noise tolerance level of average human beings is 60–65 decibels. The noise pollution levels in some areas are as follows: Binay–Badal–Dinesh Bag 80 – 85&amp;amp;nbsp;dB,   Esplanade 70 – 84&amp;amp;nbsp;dB,  Park Street 78 – 81&amp;amp;nbsp;dB,  Gariahat 80 – 82&amp;amp;nbsp;dB and  Shyambazar 80 – 82&amp;amp;nbsp;dB. Spread over 12,500 hectares the East Kolkata Wetlands play a very vital role in maintaining the ecological balance in the neighbourhood of Kolkata. KMC dumps 2,600 tons of solid waste daily. In addition liquid [[sewage]], toxic effluents and polluted air are recycled into clean air, fresh water, organic nutrients and a daily supply of fresh fish and green vegetables for Kolkata kitchens. The surrounding countryside continues its subsistence living with the help of this eco-system.&amp;lt;ref&amp;gt;{{cite web| url = http://www.censusindia.gov.in/2011census/dchb/DCHB_A/19/1916_PART_A_DCHB_KOLKATA.pdf |title = District Census Handbook Kolkata, Census of India 2011, Series 20, Part XII A | work=Pages 23–24: Kolkata’s environment, Pages 21–22: East Kolkata Wetlands-Kolkata’s pride|publisher= Directorate of Census Operations, West Bengal| access-date = 20 February 2018}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
===Industry===&lt;br /&gt;
[[File:Birla Planetarium, Kolkata.jpg|thumb|250px|right|[[Birla Planetarium, Kolkata|M. P. Birla Planetarium]]]]&lt;br /&gt;
The [[East India Company]] secured the licence for trading in Bengal from the [[Mughal emperors|Mughal emperor]] [[Aurangzeb]]. In the absence of road and air transport, in those days, water transport flourished and a [[Port of Kolkata|port]] was established at Kolkata. The first telegraph line was installed as early as 1839. A pioneering pharmaceutical company, [[Bengal Chemicals and Pharmaceuticals|Bengal Chemical &amp;amp; Pharmaceutical Works]] was established in 1893. The [[Cinema of West Bengal|film industry]], based in Tollygunge, also had an early start. The first silent Bengali feature film, &#039;&#039;[[Bilwamangal]]&#039;&#039;, was produced in 1919 and the first Bengali talkie, &#039;&#039;[[Jamai Shashthi]]&#039;&#039;, was released in 1931. There were [[Economy of Kolkata|other sectors]] which had an early start and were subsequently followed up. Kolkata district had 1,012 registered factories in 2010. The three most important goods manufactured in Kolkata district in 2009 were: engineering goods, [[Calcutta Leather Complex|leather products]] and rubber products.&amp;lt;ref name=&amp;quot;industry&amp;quot;&amp;gt;{{cite web| url = http://www.censusindia.gov.in/2011census/dchb/DCHB_A/19/1916_PART_A_DCHB_KOLKATA.pdf |title = District Census Handbook Kolkata, Census of India 2011, Series 20, Part XII A | work= Pages 26–30: Statement VI, Page 105: Industry, Banking, Pages 30–31: Trade and Commerce |publisher= Directorate of Census Operations, West Bengal| access-date = 20 February 2018}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
There was a boom in information technology sector since 2001 with more and more companies being set up in Salt Lake Sector V and later in New Town.&lt;br /&gt;
&lt;br /&gt;
&#039;&#039;&#039;Trade and Commerce&#039;&#039;&#039;: While there were only a handful of [[Marwari people|Marwaris]] in Kolkata&#039;s trade and commerce towards the end of the 18th century, they came in larger numbers with the turn of the century and particularly after opening of the railways (1860) and dominated Kolkata&#039;s economy. During the 1830s some of the best-known Marwari families, well established in business, were the Singhanias, the Sarafs, the Kotharis and the Bagris. By the turn of the century more Marwari families were in the business limelight: the Poddars, the Mundhras, the Dalmias, the Dugars, the Jalans, the Jhunjhunwalas, the Jaipurias, the Rampurias and the [[Birla family|Birlas]].&amp;lt;ref name=&amp;quot;industry&amp;quot;/&amp;gt;[[Burrabazar]] became a stronghold of Marwari businessmen from the middle of the 19th century but their operations remained subservient to British business interests. Business opportunities during [[World War I]] transformed the Marwaris from a trading community to entrepreneurs and they started challenging the British economically. They gained entry into British economic strongholds like the jute and cotton industries. After [[World War II]], as the British left India, the Marwaris acquired most of their business interests. With political ‘delinquency’ prevailing in Kolkata from the sixties many Marwaris, particularly the elite, started looking for greener pastures elsewhere. The Marwaris “could not stop incorrigible Calcutta from getting poorer; Calcutta, in turn, could not stop them from getting richer.”&amp;lt;ref&amp;gt;Mitra, Sukumar and Prasad, Amrita, The Marwaris of Calcutta, in “Calcutta, The Living City” Vol II, Edited by Sukanta Chaudhuri, Pages 110–112, First published 1990, 2005 edition, {{ISBN|0-19-563697-X}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
==Electoral constituencies==&lt;br /&gt;
[[Lok Sabha]] (parliamentary) and [[Vidhan Sabha]] (state assembly) constituencies covering Kolkata district are as follows:&amp;lt;ref&amp;gt;{{cite news |title=Kolkata (North) district|url=http://ceowestbengal.nic.in/ACName?DCID=12}}&amp;lt;/ref&amp;gt;&amp;lt;ref&amp;gt;{{cite news |title=Kolkata (South) district|url=http://ceowestbengal.nic.in/ACName?DCID=11}}&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable sortable&amp;quot;&lt;br /&gt;
|-&lt;br /&gt;
!  Lok Sabha constituency ||Reservation||Vidhan Sabha constituency &lt;br /&gt;
!MLA&lt;br /&gt;
!Party||Reservation||Grouped with district||[[Kolkata Municipal Corporation|KMC]] wards &lt;br /&gt;
|-&lt;br /&gt;
| rowspan=&amp;quot;7&amp;quot; |[[Kolkata Uttar Lok Sabha constituency|Kolkata Uttar]]|| rowspan=&amp;quot;11&amp;quot; |None||[[Chowrangee (Vidhan Sabha constituency)|Chowrangee]]&lt;br /&gt;
|[[Nayna Bandyopadhyay]]&lt;br /&gt;
|[[All India Trinamool Congress]]|| rowspan=&amp;quot;11&amp;quot; |None|| rowspan=&amp;quot;11&amp;quot; |Kolkata||[[Ward No. 44, Kolkata Municipal Corporation|44]], [[Ward No. 45, Kolkata Municipal Corporation|45]], [[Ward No. 46, Kolkata Municipal Corporation|46]], [[Ward No. 47, Kolkata Municipal Corporation|47]], [[Ward No. 48, Kolkata Municipal Corporation|48]], [[Ward No. 49, Kolkata Municipal Corporation|49]], [[Ward No. 50, Kolkata Municipal Corporation|50]], [[Ward No. 51, Kolkata Municipal Corporation|51]], [[Ward No. 52, Kolkata Municipal Corporation|52]], [[Ward No. 53, Kolkata Municipal Corporation|53]] and [[Ward No. 62, Kolkata Municipal Corporation|62]]&lt;br /&gt;
|-&lt;br /&gt;
|[[Entally (Vidhan Sabha constituency)|Entally]]&lt;br /&gt;
|Sandipan Saha&lt;br /&gt;
|[[All India Trinamool Congress]]||[[Ward No. 54, Kolkata Municipal Corporation|54]], [[Ward No. 55, Kolkata Municipal Corporation|55]], [[Ward No. 56, Kolkata Municipal Corporation|56]], [[Ward No. 58, Kolkata Municipal Corporation|58]] and [[Ward No. 59, Kolkata Municipal Corporation|59]]&lt;br /&gt;
|-&lt;br /&gt;
|[[Beleghata (Vidhan Sabha constituency)|Beleghata]]&lt;br /&gt;
|[[Kunal Ghosh]]&lt;br /&gt;
|[[All India Trinamool Congress]]||[[Ward No. 28, Kolkata Municipal Corporation|28]], [[Ward No. 29, Kolkata Municipal Corporation|29]], [[Ward No. 30, Kolkata Municipal Corporation|30]], [[Ward No. 33, Kolkata Municipal Corporation|33]], [[Ward No. 34, Kolkata Municipal Corporation|34]], [[Ward No. 35, Kolkata Municipal Corporation|35]], [[Ward No. 36, Kolkata Municipal Corporation|36]] and [[Ward No. 57, Kolkata Municipal Corporation|57]]&lt;br /&gt;
|-&lt;br /&gt;
|[[Jorasanko (Vidhan Sabha constituency)|Jorasanko]]&lt;br /&gt;
|Vijay Ojha&lt;br /&gt;
|[[Bharatiya Janata Party]]||[[Ward No. 22, Kolkata Municipal Corporation|22]], [[Ward No. 23, Kolkata Municipal Corporation|23]], [[Ward No. 25, Kolkata Municipal Corporation|25]], [[Ward No. 27, Kolkata Municipal Corporation|27]], [[Ward No. 37, Kolkata Municipal Corporation|37]], [[Ward No. 38, Kolkata Municipal Corporation|38]], [[Ward No. 39, Kolkata Municipal Corporation|39]], [[Ward No. 40, Kolkata Municipal Corporation|40]], [[Ward No. 41, Kolkata Municipal Corporation|41]], [[Ward No. 42, Kolkata Municipal Corporation|42]] and [[Ward No. 43, Kolkata Municipal Corporation|43]]&lt;br /&gt;
|-&lt;br /&gt;
|[[Shyampukur (Vidhan Sabha constituency)|Shyampukur]]&lt;br /&gt;
|Purnima Chakraborty&lt;br /&gt;
|[[Bharatiya Janata Party]]||[[Ward No. 7, Kolkata Municipal Corporation|7]], [[Ward No. 8, Kolkata Municipal Corporation|8]], [[Ward No. 9, Kolkata Municipal Corporation|9]], [[Ward No. 10, Kolkata Municipal Corporation|10]], [[Ward No. 17, Kolkata Municipal Corporation|17]], [[Ward No. 18, Kolkata Municipal Corporation|18]], [[Ward No. 19, Kolkata Municipal Corporation|19]], [[Ward No. 20, Kolkata Municipal Corporation|20]], [[Ward No. 21, Kolkata Municipal Corporation|21]], [[Ward No. 24, Kolkata Municipal Corporation|24]] and [[Ward No. 26, Kolkata Municipal Corporation|26]]&lt;br /&gt;
|-&lt;br /&gt;
|[[Maniktala (Vidhan Sabha constituency)|Maniktala]]&lt;br /&gt;
|[[Tapas Roy]]&lt;br /&gt;
|[[Bharatiya Janata Party]]|| [[Ward No. 11, Kolkata Municipal Corporation|11]], [[Ward No. 12, Kolkata Municipal Corporation|12]], [[Ward No. 13, Kolkata Municipal Corporation|13]], [[Ward No. 14, Kolkata Municipal Corporation|14]], [[Ward No. 15, Kolkata Municipal Corporation|15]], [[Ward No. 16, Kolkata Municipal Corporation|16]], [[Ward No. 31, Kolkata Municipal Corporation|31]] and [[Ward No. 32, Kolkata Municipal Corporation|32]]&lt;br /&gt;
|-&lt;br /&gt;
|[[Kashipur-Belgachhia]]&lt;br /&gt;
|Ritesh Tiwari&lt;br /&gt;
|[[Bharatiya Janata Party]]||[[Ward No. 1, Kolkata Municipal Corporation|1]], [[Ward No. 2, Kolkata Municipal Corporation|2]], [[Ward No. 3, Kolkata Municipal Corporation|3]], [[Ward No. 4, Kolkata Municipal Corporation|4]], [[Ward No. 5, Kolkata Municipal Corporation|5]] and [[Ward No. 6, Kolkata Municipal Corporation|6]]&lt;br /&gt;
|-&lt;br /&gt;
| rowspan=&amp;quot;4&amp;quot; |[[Kolkata Dakshin Lok Sabha constituency|Kolkata Dakshin (Partly)]]||[[Kolkata Port (Vidhan Sabha constituency)|Kolkata Port]]&lt;br /&gt;
|[[Firhad Hakim]]&lt;br /&gt;
|[[All India Trinamool Congress]]|| [[Ward No. 75, Kolkata Municipal Corporation|75]], [[Ward No. 76, Kolkata Municipal Corporation|76]], [[Ward No. 78, Kolkata Municipal Corporation|78]], [[Ward No. 79, Kolkata Municipal Corporation|79]], [[Ward No. 80, Kolkata Municipal Corporation|80]], [[Ward No. 133, Kolkata Municipal Corporation|133]], [[Ward No. 134, Kolkata Municipal Corporation|134]] and [[Ward No. 135, Kolkata Municipal Corporation|135]]&lt;br /&gt;
|-&lt;br /&gt;
|[[Bhabanipur, West Bengal Assembly constituency|Bhabanipur]]&lt;br /&gt;
|[[Suvendu Adhikari]]&lt;br /&gt;
|[[Bharatiya Janata Party]]|| [[Ward No. 63, Kolkata Municipal Corporation|63]], [[Ward No. 70, Kolkata Municipal Corporation|70]], [[Ward No. 71, Kolkata Municipal Corporation|71]], [[Ward No. 72, Kolkata Municipal Corporation|72]], [[Ward No. 73, Kolkata Municipal Corporation|73]], [[Ward No. 74, Kolkata Municipal Corporation|74]], [[Ward No. 77, Kolkata Municipal Corporation|77]] and [[Ward No. 82, Kolkata Municipal Corporation|82]]&lt;br /&gt;
|-&lt;br /&gt;
|[[Rashbehari (Vidhan Sabha constituency)|Rashbehari]]&lt;br /&gt;
|[[Swapan Dasgupta]]&lt;br /&gt;
|[[Bharatiya Janata Party]]|| [[Ward No. 81, Kolkata Municipal Corporation|81]], [[Ward No. 83, Kolkata Municipal Corporation|83]], [[Ward No. 84, Kolkata Municipal Corporation|84]], [[Ward No. 86, Kolkata Municipal Corporation|86]], [[Ward No. 87, Kolkata Municipal Corporation|87]], [[Ward No. 88, Kolkata Municipal Corporation|88]], [[Ward No. 89, Kolkata Municipal Corporation|89]], [[Ward No. 90, Kolkata Municipal Corporation|90]]  and [[Ward No. 93, Kolkata Municipal Corporation|93]]&lt;br /&gt;
|-&lt;br /&gt;
|[[Ballygunge (Vidhan Sabha constituency)|Ballygunge]]&lt;br /&gt;
|[[Sovandeb Chattopadhyay]]&lt;br /&gt;
|[[All India Trinamool Congress]]||[[Ward No. 60, Kolkata Municipal Corporation|60]], [[Ward No. 61, Kolkata Municipal Corporation|61]], [[Ward No. 64, Kolkata Municipal Corporation|64]], [[Ward No. 65, Kolkata Municipal Corporation|65]], [[Ward No. 68, Kolkata Municipal Corporation|68]], [[Ward No. 69, Kolkata Municipal Corporation|69]] and [[Ward No. 85, Kolkata Municipal Corporation|85]]&lt;br /&gt;
|-&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
== See also ==&lt;br /&gt;
{{Portal|India}}&lt;br /&gt;
* [[Chennai district]]&lt;br /&gt;
* [[Delhi]]&lt;br /&gt;
* [[Kolkata metropolitan region]]&lt;br /&gt;
* [[List of districts of West Bengal]]&lt;br /&gt;
* [[Mumbai City district]]&lt;br /&gt;
&lt;br /&gt;
==References==&lt;br /&gt;
{{reflist}}&lt;br /&gt;
{{reflist|group=lower-alpha}}&lt;br /&gt;
&lt;br /&gt;
==External links==&lt;br /&gt;
*[https://www.mapsofindia.com/maps/westbengal/districts/kolkata.html Map of the Kolkata district] at MapsofIndia&lt;br /&gt;
{{Geographic location&lt;br /&gt;
|Centre    = Kolkata district&lt;br /&gt;
|North     = &lt;br /&gt;
|Northeast = [[North 24 Parganas district]]&lt;br /&gt;
|East      = &lt;br /&gt;
|Southeast = &lt;br /&gt;
|South     = [[South 24 Parganas district]]&lt;br /&gt;
|Southwest = &lt;br /&gt;
|West      = &lt;br /&gt;
|Northwest = [[Howrah district]]&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
{{Districts of West Bengal}}&lt;br /&gt;
{{Kolkata Municipal Corporation wards}}&lt;br /&gt;
{{Minority Concentrated Districts in India}}&lt;br /&gt;
&lt;br /&gt;
{{DEFAULTSORT:Kolkata District}}&lt;br /&gt;
[[Category:Kolkata district| ]]&lt;br /&gt;
[[Category:Districts of West Bengal]]&lt;br /&gt;
[[Category:Minority concentrated districts in India]]&lt;/div&gt;</summary>
		<author><name>162.129.251.22</name></author>
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