![]() ![]() Photo mosaic is a by-product of photo maps in which adjoining aerial photographs are rectified and brought to the same scale for use as a photo map for the entire area of interest. Some annotation of details is done so that the user can identify and relate information on the ground. ![]() Photo maps / image generated by rectification of available aerial photographs / satellite imagery bringing them to a correct scale. This task has been shared with National Atlas and Thematic Mapping Organization (NATMO), Kolkata. These maps fulfill the specific requirements, such as Census, Soil, Education etc. Parliamentary/ Assembly Constituency Maps.International Maps of the World (IMW) (On 1:1 M scale).ICAO (World Aeronautical) Charts (On 1:1 M scale).About 200 districts of India are covered in this category.In this category following types of maps are printed: For sale and distribution the responsibilities are assigned to ADGMS (GSGS), Ministry of Defence, DGIS Enclave, Rao Tula Ram Marg, Delhi Cantt. Survey of India is only authorized for preparation and printing of DSM. They contain full features of map with grid, contours and other classified information without any dilution of accuracy therefore, they are kept under restricted category. Technically maps of this series are based on WGS-84 Datum and LCC Projection. These are prepared on 1:250,000 1:50,000 and 1:25,000 scales for the use of defence forces of India for supporting national security requirements. Few sheets are also printed in Hindi and other regional languages. They can be obtained from all map sale centre and other authorized agents deputed all over the country. They do not contain grid and classified information therefore, they are kept under unrestricted category. Technically maps of this series are based on WGS-84 Datum and UTM Projection. These are prepared on 1:250,000 1:50,000 and 1:25,000 scales for the use of general public/civilians for supporting development activities in the country. Till date target of 100% OSM sheets printing has not been achieved so these maps are still available in our map sale counters. But, since National Mapping Policy - 2005 has been implemented (May 19, 2005) in our department the production of fresh topographical maps has been stopped. Technically they were based on Everest Datum and Polyconic Projection. They have tremendously rendered their services to the Government of India to bring out various types of maps for publication by Survey of India. Our expertise in this field compares to the best anywhere in the world. MAPS (All Maps are printed in English language, except where otherwise stated) ![]()
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