River
Ib
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Overview
The Ib is a left-bank tributary of the Mahanadi. It rises in the hills of Jashpur district in Chhattisgarh and flows into Odisha.
It enters the Hirakud reservoir near Jharsuguda. Its valley holds the Ib Valley coalfield, one of Odisha's main sources of thermal coal.
Power plants and industry around Jharsuguda and Belpahar depend on this coal.
Geography and key facts
- Left-bank tributary of the Mahanadi
- Rises in Jashpur, Chhattisgarh
- Joins Hirakud reservoir, Odisha
- Ib Valley coalfield
Why it matters for UPSC
Coalfield–river pairs: Ib Valley (Ib), Talcher (Brahmani), Korba (Hasdeo), Singrauli (Son).
Note for UPSC
A Mahanadi tributary joining at Hirakud reservoir.
Prelims asks about tributaries, the states a river flows through, its basin and the projects on it, so trace the course on the map.
Asked in PYQs
No question in our Prelims bank names Ib yet.
Key facts
- Type
- River
- States / UTs on its course
- Odisha, Chhattisgarh
- River system
- Peninsular
- Basin
- Mahanadi
- Extent on map
- 21.6°–22.7°N, 83.8°–84.1°E
From the Map Explorer data; positions are for orientation.