The Survey of India at Dehradun is the national survey and mapping organization under the Department of Science and Technology.

It is the oldest scientific department of the Government of India. Established in 1767, the Survey of India of Dehradun advises the Government of India on all survey matters. It has been working with full dedication since then.

The principal duties and responsibilities of the Survey of India in Dehradun are:

Geodetic control (horizontal and vertical) and geodetic and geophysical surveys.
Topographical control, surveys and mapping within India.
Mapping and production of geographical maps and aeronautical charts.
Surveys for developmental projects.
Survey of large-scale city and guide maps.
Survey and mapping of special purpose maps.

search and development in digital mapping and creation of Digital Topographical Database on 1:250,000, 1:50,000 and 1:25,000 scale, printing, geodesy, photogrammetry, topographical surveys and indigenization.

Forecast of tides at 44 ports including 14 foreign ports and publication of the Tide Table one year in advance to aid navigational activities.

Scrutiny and certification of external boundaries and the coastline on maps published by other agencies including private publishers.

The Survey of India at Dehradun is the principal advisory body of the Government of India and state ministries in terms of mapping and survey activities.

Last Updated on 14 March 2013