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Survey of India was publishing toposheets using a scale of
1. 1 : 1000
2. 1 : 5000
3. 1 : 10000
4. 1 : 50000

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Correct Answer - Option 4 : 1 : 50000

Concept:

Topographical Maps (Toposheets):

  • A Topographical Map is a type of map characterized by large-scale detail and quantitative representation of terrain usually using contour lines.
  • In other words, Topographical Map is plotted on a sufficiently large scale to enable the individual features shown on the map to be identified on the ground by their shapes and positions.
  • In India, the Survey of India is responsible for all topographic control, surveys and mapping.
  • Before adopting National Mapping Policy: 2005, Survey of India had published and printed topographical maps on 1:250,000; 1:50,000 and 1:25,000 scales.
  • But since adoption of National Mapping Policy: 2005, Survey of India has stopped the production of fresh topographical maps.

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