Bhangar vs Khadar
Old alluvial uplands versus new floodplain deposits along North Indian rivers — fertility, composition, and land use.
Start here
Bhangar is older alluvium on interfluve uplands away from active river channels, often containing calcareous kankar nodules. Khadar is newer floodplain alluvium deposited by rivers each flood season, renewed with fertile silt along the banks.
The Indo-Gangetic plain is not uniform flat land. Geographers divide riverine tracts into Bhangar (older terrace) and Khadar (younger floodplain). This pair appears in NCERT and GS-I map-based questions.
UPSC tests which is renewed annually by silt, which has kankar nodules, and why Khadar supports intensive agriculture despite flood risk.
Side-by-side comparison
| Feature | Bhangar | Khadar |
|---|---|---|
| Composition | Clay, kankar nodules, less uniform | Fine silt, sand, clay — well sorted |
| Agriculture | Wheat, millets with irrigation | Intensive rice, wheat, sugarcane, vegetables |
| Settlement pattern | Older towns on slightly higher ground | Linear settlements along river |
| Regional example | Bhangar plains of UP, Bihar uplands | Khadar tracts of Ganga, Brahmaputra |
| Soil texture | Clay-rich with kankar pans | Fine silt-sand mix, well sorted by floods |
| Drainage | Better natural drainage on uplands | Poor drainage in low-lying floodplains |
At a glance
Age of alluvium
Older (Pleistocene–older Holocene)
Newer (active floodplain deposits)
Location
Interfluve uplands, away from channel
Along river banks, active floodplain
Fertility
Lower; kankar (calcrete) common
Higher; fresh silt each flood season
Flood risk
Lower
Higher — annual inundation possible
Yamuna belt near Delhi
Villages on the elevated interfluve between Yamuna and Hindon sit on Bhangar — older soil, tubewell irrigation, kankar layers. Along the active Yamuna channel, Khadar fields receive fresh silt each monsoon flood — ideal for vegetables and wheat, but vulnerable to inundation.
What this means for the exam
Khadar = young, fertile, flood-prone | Bhangar = old, upland, kankar-rich.
Understand the difference
Kankar and Bhangar
Kankar (calcareous concretions) in Bhangar limits permeability and can hinder root penetration — farmers break kankar pans or rely on tubewells. Khadar lacks thick kankar layers, making it preferred for high-value cropping despite flood hazard.
Prelims statement check
“Khadar is composed of older alluvium deposited before the Pleistocene.”
Incorrect — Age trap
Khadar is newer floodplain alluvium; Bhangar is the older upland deposit.
“Khadar soils are renewed by periodic floods bringing fresh silt.”
Correct — Flood renewal
Correct — each flood adds fertile silt to Khadar tracts.
PYQ Linkage
Khadar lands in North India are characterised by:
Key Takeaway
Bhangar = old upland alluvium + kankar | Khadar = new floodplain silt, more fertile