Examine individual changes

[ 0 => '{{Short description|Indian agency for mapping and surveying}}', 1 => '{{Use dmy dates|date=July 2017}}', 2 => '{{Use Indian English|date=July 2017}}', 3 => '{{Infobox government agency', 4 => '| name = Survey of India', 5 => '| native_name = ', 6 => '| native_name_a = ', 7 => '| native_name_r = ', 8 => '| type = Survey and mapping agency', 9 => '| seal = ', 10 => '| seal_width = ', 11 => '| seal_caption = ', 12 => '| logo = Survey of India logo.jpg', 13 => '| logo_width = 125px ', 14 => '| logo_caption = ', 15 => '| image = ', 16 => '| image_size = ', 17 => '| image_caption = ', 18 => '| formed = {{Start date and age|1767}}<ref>{{cite web|title=About Us|url=http://www.surveyofindia.gov.in/pages/view/10-about-us|website=Survey of India|access-date=27 May 2018|archive-date=26 May 2018|archive-url=https://web.archive.org/web/20180526230609/http://www.surveyofindia.gov.in/pages/view/10-about-us|url-status=live}}</ref>', 19 => '| superseding1 = ', 20 => '| superseding2 = <!-- up to |superseding6= -->', 21 => '| jurisdiction = {{Unbulleted_list|[[East India Company]]<br>{{small|(1767&ndash;1858)}}|[[British Raj]] <br>{{small|(1858&ndash;1947)}}|[[Government of India]]<br>{{small|(from 1947)}}}}', 22 => '| headquarters = Hathibarkala Estate, New Cantt Road, [[Dehradun]], [[Uttarakhand]], India<ref>{{cite web|title=Contact us|url=http://www.surveyofindia.gov.in/pages/display/192-contact-us|website=Survey of India|access-date=27 May 2018|archive-date=15 May 2018|archive-url=https://web.archive.org/web/20180515053914/http://surveyofindia.gov.in/pages/display/192-contact-us|url-status=live}}</ref>', 23 => '| coordinates = <!-- {{coord|LATITUDE|LONGITUDE|type:landmark_region:US|display=inline,title}} -->', 24 => '| motto = ', 25 => '| employees = ', 26 => '| budget = ', 27 => '| minister1_name = [[Jitendra Singh (politician, born 1956)|Dr Jitendra Singh]]', 28 => '| minister1_pfo = [[Minister of Science and Technology (India)|Minister of Science and Technology]]', 29 => '| chief1_name = Hitesh Kumar S Makwana ', 30 => '| chief1_position = [[Surveyor General of India]]', 31 => '| chief2_name = ', 32 => '| chief2_position = ', 33 => '| deputy = ', 34 => '| parent_department = [[Department of Science and Technology (India)|Department of Science and Technology]]', 35 => '| child1_agency = ', 36 => '| child2_agency = <!-- up to |child25_agency= -->', 37 => '| keydocument1 = <!-- up to |keydocument6= -->', 38 => '| website = {{URL|surveyofindia.gov.in}}', 39 => '| agency_id = ', 40 => '| map = ', 41 => '| map_size = ', 42 => '| map_caption = ', 43 => '| footnotes = ', 44 => '| embed = ', 45 => '}}', 46 => '[[File:1870_Index_Chart_to_GTS_India-1.jpg|thumb|right|A map showing the triangles and transects used in the [[Great Trigonometrical Survey]] (1802–1852), produced in 1870.]]', 47 => '[[File:GeorgeEverest.jpeg|thumb|200px|Surveyor-General of India [[George Everest]] (b.1790-d.1866) under whom [[Great Trigonometrical Survey|GTS]] was completed and [[Mount Everest]] was named in his honour.]]', 48 => '', 49 => 'The '''Survey of India''' is [[India]]'s central engineering agency in charge of [[Cartography|mapping]] and [[surveying]].<ref name=si1>[http://indianexpress.com/article/india/on-250th-birthday-survey-of-india-wants-to-shed-its-cloak-of-secrecy/ On 250th birthday, Survey of India wants to shed its cloak of secrecy] {{Webarchive|url=https://web.archive.org/web/20170129065938/http://indianexpress.com/article/india/on-250th-birthday-survey-of-india-wants-to-shed-its-cloak-of-secrecy/ |date=29 January 2017 }}, [[Indian Express]].</ref> Set up in 1767<ref name=si2>[https://books.google.com/books?id=oGVSvXuCsyUC&dq=St.+Peter%27s+Church+allahabad&pg=SL1-PA63 St. Peter Church Allahabad] {{Webarchive|url=https://web.archive.org/web/20230217145607/https://books.google.com/books?id=oGVSvXuCsyUC&pg=SL1-PA63&dq=St.+Peter%27s+Church+allahabad&hl=en&sa=X&ei=irMpUu_CN-XsiAfesIHgDg&redir_esc=y#v=onepage&q=St.%20Peter's%20Church%20allahabad&f=false |date=17 February 2023 }}.</ref> to help consolidate the territories of the [[British East India Company]], it is one of the oldest Engineering Departments of the [[Government of India]]. Its members are from [[Survey of India Service]] cadre of [[Civil Services of India]]. It is headed by the [[Surveyor General of India]]. At present, the Surveyor General is Hitesh Kumar S. Makwana.', 50 => '', 51 => '==History==', 52 => 'The history of the Survey of India dates back to the 18th century.<ref>{{Cite book|last=Dean|first=Riaz|title=Mapping The Great Game: Explorers, Spies & Maps in Nineteenth-century Asia|publisher=Casemate (UK)|year=2019|isbn=978-1-61200-814-1|location=Oxford|pages=72–83}}</ref> "First modern scientific survey of India" was undertaken by W. Mather in 1793&ndash;96 on instructions of Superintendent of Salem and Baramahal, Col. Alexander Read. The present [[Dharmapuri district]], [[Krishnagiri district]] and [[North Arcot]] in western [[Tamil Nadu]] were then called Baramahal.<ref name=si3>Baramahal records Vol.I P.220, In Letter Dated 04.10.1797 The British Government appreciated Col. Alexander Read.</ref>', 53 => '', 54 => 'The [[Great Trigonometrical Survey]] (1802&ndash;1852) was started by British surveyor Col. [[William Lambton]] on 10 April 1802, heading from [[St. Thomas Mount]] in [[Chennai]] to the [[Indian Himalayan Region|foothills of the Himalayas]].{{Citation needed|date=February 2023}} 36 inch huge half ton weight [[Theodolite]] was used, which took 57 days to measure the 12-km base line. This 5-decade project was completed under Survey General [[George Everest|Lt. George Everest]] in the year 1852. Pioneering mathematician and Surveyor [[Radhanath Sikdar]] measured [[Mount Everest]] in 1852, with a height of 29,002&nbsp;feet. Modern measurements indicate the height is 29,037&nbsp;feet. This is regarded as the beginning of a new age of systematic topographical mapping in India succeeding the classical age, and the founding of one of the oldest survey and mapping agencies in the world.', 55 => '', 56 => '==Organisation==', 57 => 'The Survey of India, headquartered at [[Dehradun]], [[Uttarakhand]], has 18 geospatial divisions ranging from the prediction of [[tide]]s to [[aerial survey]]. It has 23 Geo-spatial Data Centers spread across India, each catering to the respective administrative area. Surveyors are the back bone of Survey of India.', 58 => 'Appointments to Group 'A' Civil Stream posts in the Junior Time Scale (Dy Supdtg Surveyor) in Survey of India are made on the basis of competitive [[Indian Engineering Services]] examination conducted by the [[Union Public Service Commission]] .', 59 => 'The important posts/ grades in Survey of India are in the following order of seniority: [[Draftsman]], Plane Tabler, Survey Assistant, [[Surveying|Surveyor]], Officer Surveyor, [[Deputy Superintending Surveyor]], [[Superintending Surveyor]], [[Superintending Surveyor]] (Non-Functional Second Grade)/Deputy Director, Director/Deputy Surveyor General, Additional Surveyor General, [[Surveyor General]].', 60 => '', 61 => '==Responsibilities==', 62 => '* '''Advisor to the Indian Government:''' The Survey of India acts as an adviser to the Government of India on all [[cartography of India|cartography]]-related matters, such as [[geodesy]], [[photogrammetry]], [[Cartography|mapping]] and [[Cartography#Map symbology|map reproduction]].', 63 => '* '''Geo names:''' Survey of India is responsible for the [[naming convention]] and spellings of names of [[Geography of India|geographical features of India]].', 64 => '* '''Certification and publication:''' Scrutiny and certification of external boundaries of India and Coastline on maps published by the other agencies including private publishers. Publication of [[tide table]]s (one year in advance) and maps of India.', 65 => '* '''Surveys:''' [[geodetic datum]], [[geodetic control network]], [[Topographic map|topographical control]], [[geophysical survey]]s, [[cadastral surveying]], [[geologic map]]s, [[aeronautical chart]]s within India, such as for forests, army cantonments, large scale cities, guide maps, developmental or conservation projects, etc.', 66 => '* '''National borders:''' Demarcation of the [[:Category:Borders of India|borders]] and [[Exclusive economic zone#India|external boundaries]] of India as well as advice on the demarcation of inter-state boundaries.', 67 => '* '''Oceanic tidal prediction:''' Undertake prediction of [[tide]]s at [[Ports in India|44 ports]] including [[List of countries with overseas military bases#India|14 foreign ports]].', 68 => '* '''Research and development:''' In the area of [[photogrammetry]], cartography, geodesy, topographical surveys and indigenisation of technology.', 69 => '* '''Training:''' Training for the central and state government departments as well as from foreign countries.', 70 => '', 71 => '==Maps==', 72 => 'The Survey of India publishes maps and the unrestricted category maps can be obtained from its several Geo-spatial data centers. Restricted category maps require due approval from government authorities. Many other rules govern the sale and use of Survey of India maps. Only an Indian citizen may purchase [[topographic map]]s and these may not be exported from India for any reason.<ref>{{Cite web|title=Restriction on maps in India|date=3 December 2010|url=https://www.geospatialworld.net/article/restriction-on-maps-in-india/|url-status=live|access-date=20 March 2021|archive-date=30 January 2022|archive-url=https://web.archive.org/web/20220130035246/https://www.geospatialworld.net/article/restriction-on-maps-in-india/}}</ref> On 15 February 2021, the Government of India announced changes to the country's mapping policy which frees up lot of earlier restrictions related to mapping.<ref>{{Cite web|last=Chaudhary|first=Swapnil|date=2021-02-17|title=New mapping policy|url=https://www.policycode.com/analysis/new-mapping-policy-to-be-promising-and-growth-ridden-step-for-india/|url-status=live|access-date=2021-07-05|website=Policy Code|language=en|archive-date=20 April 2021|archive-url=https://web.archive.org/web/20210420214629/https://www.policycode.com/analysis/new-mapping-policy-to-be-promising-and-growth-ridden-step-for-india/}}</ref> A list of restrictions proposed is published by DST for comments by 30 July 2021.<ref>{{Cite web|title=Tentative List of Features/Installations and their sensitive attributes with reference to para 8(iii)(a) of the "Guidelines for acquiring and producing Geospatial Data and Geospatial Data Services including Maps" issued on 15.02.2021|url=https://dst.gov.in/sites/default/files/Tentative%20%20List%20of%20Combined%20Negative%20Atrributes.pdf|url-status=live|access-date=2022-01-06|website=Policy Code|language=en|archive-date=1 October 2021|archive-url=https://web.archive.org/web/20211001212539/https://dst.gov.in/sites/default/files/Tentative%20%20List%20of%20Combined%20Negative%20Atrributes.pdf}}</ref>', 73 => '', 74 => '==Gallery==', 75 => '{{Gallery', 76 => '|title=', 77 => '|width=160 | height=120', 78 => '|align=center', 79 => '|footer=', 80 => '|File:SurveyOfIndia.png', 81 => ' |alt1=', 82 => ' |Old logo of the Survey of India', 83 => '|File:Radhanath_Sikdar.jpg', 84 => ' |alt2=S ', 85 => ' |[[Radhanath Sikdar]], a mathematician who first calculated the height of [[Mount Everest]] in 1852.', 86 => '|File:William_Lambton.jpg', 87 => ' |alt3=', 88 => ' |[[William Lambton]] (1753 &ndash; 19 January 1823) started [[Great Trigonometrical Survey]] (1802&ndash;1852).', 89 => '}}', 90 => '', 91 => '==See also==', 92 => '* [[Indian Institute of Surveying & Mapping]] (IIS&M)', 93 => '* [[Survey of India Service]]', 94 => '* [[Cartography of India]]', 95 => '* [[Linguistic Survey of India]]', 96 => '', 97 => '==References==', 98 => '{{Reflist}}', 99 => '', 100 => '== Further reading ==', 101 => '* {{cite book|last=Stacey's Adventure|first=Stacey V.|title=Mapping an Empire: The Geographical Construction of British India, 1765-1843|url=https://books.google.com/books?id=LF_FBgAAQBAJ|year=2009|publisher=University of Chicago Press|isbn=978-0-226-18486-9}}', 102 => '* [[John Keay]]. 2000. ''[https://books.google.com/books?id=JgsgAQAAIAAJ The Great Arc]'', London: HarperCollins. {{ISBN|0-00-257062-9}}.', 103 => '* {{Cite book|last=Dean|first=Riaz|title=Mapping The Great Game: Explorers, Spies & Maps in Nineteenth-century Asia|publisher=Casemate (UK)|year=2019|isbn=978-1-61200-814-1|location=Oxford|pages=67–123 |url=https://books.google.com/books?id=WF3JDwAAQBAJ}} ', 104 => '* {{citation |title=The Great Trigonometrical Survey of India in a Historical Perspective |first=Rama |last=Deb Roy |journal=Indian Journal of History of Science |volume=21 |number=1 |pages=22–32 |date=1986 |url=http://www.new1.dli.ernet.in/data1/upload/insa/INSA_1/20005b5b_22.pdf|archive-url=https://web.archive.org/web/20140125140928/http://www.new1.dli.ernet.in/data1/upload/insa/INSA_1/20005b5b_22.pdf |archive-date=25 January 2014 }}', 105 => '* {{citation |title=The Survey of India Since the Second World War |first=G. F. |last=Heaney |journal=The Geographical Journal |date=September 1952 |volume=118 |number=3 |pages=280–293 |doi=10.2307/1790313 |jstor=1790313}}', 106 => '* Reginald Henry Phillimore, ''Historical Records of the Survey of India,'' 5 vols. Dehra Dun, Survey of India (1945–1968)', 107 => '** [https://archive.org/details/in.gov.ignca.35328 Volume 1: 18th Century]; [https://archive.org/details/in.gov.ignca.35329 Volume 2: 1800 to 1815]; [https://archive.org/details/in.gov.ignca.27830 Volume 3: 1815 to 1830]; [https://archive.org/details/in.gov.ignca.27831 Volume 4: 1830 to 1843]; [https://archive.org/details/1968-historical-records-of-survey-of-india-vol-5-by-phillimore-s-volume-v Volume 5: 1844 to 1861]', 108 => '', 109 => '== External links ==', 110 => '*{{official website}}', 111 => '* {{Cite web|title=Online maps portal of Survey of India|url=https://onlinemaps.surveyofindia.gov.in/|access-date=2022-01-06}}', 112 => '* [https://deeppradhan.heliohost.org/gis/indian-grid/ India Grid System]: the [[coordinate system]] used by Survey of India.', 113 => '* [https://deeppradhan.heliohost.org/gis/map-numbering/osm.htm Open Series Map (OSM)]: new map numbering system introduced as per the [http://www.surveyofindia.gov.in/files/nmp/National%20Map%20Policy.pdf National Map Policy of 2005] by Survey of India.', 114 => '* [https://deeppradhan.heliohost.org/gis/map-numbering/iac.htm India and Adjacent Countries (IAC)]: old map numbering system used previously by Survey of India', 115 => '{{Department of Science and Technology (India)}}', 116 => '{{authority control}}', 117 => '', 118 => '[[Category:Surveying of India|*]]', 119 => '[[Category:National mapping agencies]]', 120 => '[[Category:1767 establishments in Great Britain]]', 121 => '[[Category:1767 establishments in India]]', 122 => '[[Category:Government agencies of India]]', 123 => '[[Category:Executive branch of the government of India]]', 124 => '[[Category:Organisations based in Dehradun]]', 125 => '[[Category:Geodesy organizations]]', 126 => '[[Category:Government of British India]]', 127 => '[[Category:Surveying organizations]]' ]