Rivers of Central & Southern UP
Gomti, Sai, Betwa, Ken, Son, and Tons rivers of central and southern Uttar Pradesh — Ken-Betwa River Link Project, Bundelkhand irrigation, and exam facts for UPSSSC AGTA.
Rivers of Central & Southern UP
Central and southern UP are drained by rivers that originate either in the Terai plains (Gomti) or the Vindhyan Range (Betwa, Ken, Son, Tons). These rivers are crucial for irrigation in the relatively drier Bundelkhand and Vindhyan regions.
Gomti River — Lucknow’s Identity River
The Gomti is the only major river of UP that both originates and largely flows within the state.
| Parameter | Detail |
|---|---|
| Origin | Gomat Taal (Fulhar Jheel), Pilibhit district |
| Total length | ~900 km |
| Flows through | Pilibhit, Shahjahanpur, Lakhimpur, Lucknow, Sultanpur, Jaunpur, Ghazipur |
| Joins Ganga at | Kaithi, near Ghazipur (Saidpur) |
| Type | Rain-fed and spring-fed (not glacial — hence low flow in summer) |
| Key feature | Defines Lucknow’s cultural landscape — riverfront, Residency, Imambaras |
Gomti Riverfront Project: The Lucknow government developed a riverfront along the Gomti modeled on the Sabarmati Riverfront in Ahmedabad, though it has faced environmental criticism.
Gomti Tributaries
| Tributary | Joins At | Key Detail |
|---|---|---|
| Sai | Near Jaunpur/Pratapgarh | Largest tributary of Gomti |
| Kathna | Near Sitapur | Drains Terai region |
| Sarayan | Near Sultanpur | Minor tributary |
| Nand | Near Sultanpur | Seasonal stream |
Sai River
| Parameter | Detail |
|---|---|
| Origin | Near Hardoi district |
| Length | ~600 km |
| Flows through | Hardoi, Rae Bareli, Pratapgarh, Jaunpur |
| Joins | Gomti near Jaunpur |
| Significance | Major irrigation source for Rae Bareli and Pratapgarh districts |
| Key concern | Drying up in summers, pollution from towns |
Betwa River
| Parameter | Detail |
|---|---|
| Origin | Near Hoshangabad (Narmadapuram), Vindhyan Range, MP |
| Also called | Vetravati (ancient name) |
| Total length | ~590 km |
| Enters UP at | Near Jhansi |
| Flows through | Jhansi, Hamirpur |
| Joins Yamuna at | Near Hamirpur |
| Key dams | Matatila Dam (Jhansi), Rajghat Dam (UP-MP joint), Parichha Dam |
| Significance | Ken-Betwa River Link Project — India’s first river interlinking |
Ken River
| Parameter | Detail |
|---|---|
| Origin | Near Ahirgawan, Jabalpur, MP (Vindhyan Range) |
| Total length | ~427 km |
| Enters UP at | Near Banda district |
| Flows through | Banda, Chitrakoot |
| Joins Yamuna at | Near Chilla (Banda district) |
| Key feature | Flows through Panna Tiger Reserve (MP) — rich in diamonds |
| Significance | Source river for Ken-Betwa Link Project |
Ken-Betwa River Link Project
This is India’s first river interlinking project, aimed at solving Bundelkhand’s chronic water crisis.
| Parameter | Detail |
|---|---|
| Approved | 2021 (Union Cabinet approval) |
| Cost | ~₹44,605 crore (revised estimates) |
| Concept | Transfer surplus water from Ken (surplus basin) to Betwa (deficit basin) |
| Dam | Daudhan Dam on Ken river in MP |
| Canal | 221 km link canal |
| Beneficiary states | UP (Bundelkhand) and MP |
| Irrigation benefit | ~10.62 lakh hectares (6.35 lakh ha in MP, 4.27 lakh ha in UP) |
| Districts benefited (UP) | Banda, Mahoba, Jhansi, Lalitpur, Chitrakoot |
| Hydropower | 103 MW generation planned |
| Concern | Submergence of part of Panna Tiger Reserve |
Son River
| Parameter | Detail |
|---|---|
| Origin | Amarkantak, MP (same origin area as Narmada) |
| Total length | ~784 km |
| In UP | Flows along the southern edge (Sonbhadra, Mirzapur) |
| Joins Ganga at | Near Patna (in Bihar) |
| Key feature | Rihand River (tributary of Son) — Rihand Dam in Sonbhadra |
| Significance | Marks the boundary between Vindhyan and Gangetic plains |
Tons River
| Parameter | Detail |
|---|---|
| Origin | Tamsa Kund, Satna district, MP |
| Length | ~264 km |
| Flows through | Southern Prayagraj district |
| Joins Ganga at | Near Sirsa (Prayagraj) |
| Note | Not to be confused with Tons River of Uttarakhand (tributary of Yamuna) |
Drainage Pattern Comparison
| Region | Rivers | Origin Type | Character |
|---|---|---|---|
| Central UP | Gomti, Sai | Plains/Terai | Rain-fed, low summer flow |
| Southern UP (Bundelkhand) | Betwa, Ken | Vindhyan hills | Seasonal, rocky terrain |
| Southern UP (Vindhyan) | Son, Tons | Vindhyan/Amarkantak | Rocky, waterfall-prone |
Key Takeaways
- Gomti originates at Pilibhit (Gomat Taal) and is Lucknow’s identity river
- Ken-Betwa Link (approved 2021) is India’s first river interlinking project, will benefit Bundelkhand
- Son originates at Amarkantak and its tributary Rihand hosts UP’s largest dam
- Sai is the largest tributary of Gomti, flowing through Rae Bareli
- Southern UP rivers are Vindhyan in origin and largely seasonal
Summary Cheat Sheet
| Fact | Answer |
|---|---|
| Gomti origin | Gomat Taal, Pilibhit |
| Gomti joins Ganga at | Ghazipur |
| Gomti flows through | Lucknow |
| Sai joins | Gomti near Jaunpur |
| Betwa joins Yamuna at | Hamirpur |
| Ken joins Yamuna at | Chilla, Banda |
| Ken-Betwa Link approved | 2021 |
| Ken-Betwa beneficiary | Bundelkhand (UP & MP) |
| Son origin | Amarkantak, MP |
| Tons joins Ganga at | Sirsa, Prayagraj |
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