Survey of India

Survey of India

Survey and mapping agency overview
Formed	1767 (1767)
Jurisdiction	East India Company (1767–1858) British Raj (1858–1947) Government of India (from 1947)
Headquarters	Hathibarkala Estate, New Cantt Road, Dehradun, Uttarakhand, India
Minister responsible	Dr Jitendra Singh, Minister of Science and Technology
Survey and mapping agency executives	Naveen Tomar, Surveyor General of India Col. Amardeep Singh, Addl. Surveyor General
Parent department	Department of Science and Technology
Website	surveyofindia.gov.in

A map showing the triangles and transects used in the Great Trigonometrical Survey (1802-1852), produced in 1870.

Surveyor-General of India George Everest (b.1790-d.1866) under whom GTS was completed and Mount Everest was named in his honour.

The Survey of India is India's central engineering agency in charge of mapping and surveying. Set up in 1767 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 and Army Officers from the Indian Army Corps of Engineers. It is headed by the Surveyor General of India. At present, Survey of India is headed by Naveen Tomar.

History

The history of the Survey of India dates back to the 18th century. "First modern scientific survey of India" was undertaken by W. Mather in 1793–96 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.

Great Trigonometrical Survey (1802–1852) was started by British surveyor Col. William Lambton on 10 April 1802 from St. Thomas Mount in Chennai to foothills of Himalayas. 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 Lt. George Everest in the year 1852. Pioneering mathematician and Surveyor Radhanath Sikdar measured Mount Everest in 1852, with a height of 29,002 feet. Modern measurements indicate the height is 29,037 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.

Organisation

The Survey of India, headquartered at Dehradun, Uttarakhand has 18 Geo Spatial divisions ranging from the prediction of tides 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. 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 and also through permanent secondment of Army Officers Defence Stream by the Union Public Service Commission. The important posts/ grades in Survey of India are in the following order of seniority: Draftsman, Plane Tabler, Survey Assistant, 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.

Responsibilities

• Advisor to Govt: Survey of India acts as adviser to the Government of India on all cartography of India related matters, such as geodesy, photogrammetry, mapping and map reproduction.
• Geo names: Survey of India is responsible for the naming convention and spellings of names of geographical features of India.
• 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 tables (one year in advance) and maps of India.
• Surveys: geodetic datum, geodetic control network, topographical control, geophysical surveys, cadastral surveying, geologic maps, aeronautical charts within India, such as for forests, army cantonments, large scale cities, guide maps, developmental or conservation projects, etc.
• National borders: Demarcation of the borders and external boundaries of India as well as advice on the demarcation of inter-state boundaries.
• Oceanic tidal prediction: Undertake prediction of tides at 44 ports including 14 foreign ports.
• Research and development: In the area of photogrammetry, cartography, geodesy, topographical surveys and indigenisation of technology.
• Training: Training for the central and state government departments as well as from foreign countries.

Maps

Survey of India publishes maps and the unrestricted category maps can be obtained at very affordable prices 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 maps and these may not be exported from India for any reason. 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. A list of restrictions proposed is published by DST for comments by 30 July 2021.

Gallery

• 
  Old logo of the Survey of India
• 
  Radhanath Sikdar, a mathematician who first calculated the height of Mount Everest in 1852.
• 
  William Lambton (1753 – 19 January 1823) started Great Trigonometrical Survey (1802–1852).

See also

• Indian Institute of Surveying & Mapping (IIS&M)
• Survey of India Service
• Cartography of India
• Linguistic Survey of India

Further reading

• Edney, Matthew H. (2009). Mapping an Empire: The Geographical Construction of British India, 1765-1843. University of Chicago Press. ISBN 978-0-226-18486-9.
• John Keay. 2000. The Great Arc, London: Harper Collins. ISBN 0-00-257062-9.
• Dean, Riaz (2019). Mapping The Great Game: Explorers, Spies & Maps in Nineteenth-century Asia. Oxford: Casemate (UK). pp. 67–123. ISBN 978-1-61200-814-1.
• Deb Roy, Rama (1986), "The Great Trigonometrical Survey of India in a Historical Perspective" (PDF), Indian Journal of History of Science, 21 (1): 22–32, archived from the original (PDF) on 25 January 2014
• Heaney, G. F. (September 1952), "The Survey of India Since the Second World War", The Geographical Journal, 118 (3): 280–293, doi:10.2307/1790313, JSTOR 1790313
• Reginald Henry Phillimore, Historical Records of the Survey of India, 5 vols. Dehra Dun, Survey of India (1945–1968)
  • Volume 1: 18th Century; Volume 2: 1800 to 1815; Volume 3: 1815 to 1830; Volume 4: 1830 to 1843; Volume 5: 1844 to 1861

External links

• Official website
• "Online maps portal of Survey of India". Retrieved 6 January 2022.
• India Grid System: the coordinate system used by Survey of India.
• Open Series Map (OSM): new map numbering system introduced as per the National Map Policy of 2005 by Survey of India.
• India and Adjacent Countries (IAC): old map numbering system used previously by Survey of India