Pragnya IAS · Map 26 · Climate & environment

Soil map of India: major soil types

Learn the eight classic Indian soil types with their regions, parent materials and crops.

INDIA · LOCATION STUDYLabels

Original Pragnya learning artwork; generalized state boundaries: geoBoundaries · DataMeet / Election Commission of India · CC BY 2.5 IN. Markers are approximate reference locations, not thematic boundaries. Source depictions of disputed areas are not a legal boundary statement.

STUDY NOTE 1

The big eight

Alluvial (northern plains, deltas), black/regur (Deccan basalt), red (peninsular crystallines), laterite (high-rainfall ghats), arid (Rajasthan), mountain/forest (Himalaya), saline-alkaline (coasts, dry interiors) and peaty/marshy (Kerala backwaters, Sundarbans).

STUDY NOTE 2

Black soil detail

Regur soils from Deccan trap basalt are clay-rich, moisture-retentive and ideal for cotton — hence “black cotton soil”.

STUDY NOTE 3

Laterite is leached

Heavy monsoon leaching removes silica and bases, leaving iron and aluminium oxides; laterite is poor for crops without manure but hardens into building blocks.

Map reading task

Draw India and shade the black, alluvial, red and laterite zones; label one crop suited to each.

Map key · Reference locations

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What does this india: major soil types lesson explain?

UPSC map practice & Geography Optional connection

For UPSC Prelims, pair the location with its state, neighbouring relief and relevant geographic process. For GS I and Geography Optional Indian geography revision, use a simple labelled sketch to explain the relationship rather than replacing the answer with place names. These are Pragnya-authored exercises, not official UPSC previous-year questions.

References & map credits

Pragnya IAS explanations and practice are independently authored. The uploaded geography compilation informed topic selection only; its pages, illustrations, advertisements and personal watermarks are not republished. Licensed base data retain their original attribution. These lessons are educational references, not navigation, legal boundary or live hazard maps.