CSIR-NGRI Discovers 200-km Ancient Buried River Channel Between Prayagraj and Kanpur
CSIR-NGRI discovered a 200-km-long ancient buried river channel between Prayagraj and Kanpur in the Ganga-Yamuna Doab, useful for groundwater recharge.
Scientists from the CSIR-National Geophysical Research Institute (NGRI) discovered a large underground palaeo-channel — an ancient buried river path — stretching between Prayagraj and Kanpur in the Ganga-Yamuna Doab region of Uttar Pradesh.
The channel lies about 10 to 15 metres below the surface and runs for nearly 200 km. It represents an ancient, independent river system that was separate from the present-day Ganga and Yamuna rivers. The discovery was made using advanced Heliborne Transient Electromagnetic (H-TEM) technology, supported by confirmatory drilling.
Researchers found highly porous clay and sand layers within the channel, which makes it well suited for groundwater recharge projects in a region that faces water stress. The work was a joint effort of CSIR-NGRI, the National Mission for Clean Ganga (NMCG) and the Central Ground Water Board (CGWB).
For aspirants, key facts are the location (Ganga-Yamuna Doab), the technology used (H-TEM), and the potential use of the channel for groundwater recharge.
Key Points to Remember
- CSIR-NGRI found a 200-km palaeo-channel between Prayagraj and Kanpur (Ganga-Yamuna Doab)
- Buried 10–15 metres below the surface; an ancient independent river system
- Discovered using Heliborne Transient Electromagnetic (H-TEM) technology and drilling
- Porous clay and sand layers make it suitable for groundwater recharge
- Joint work of CSIR-NGRI, NMCG and the Central Ground Water Board (CGWB)
Exam Relevance
Relevant for UPSC Prelims (Geography, Science & Tech) and SSC General Awareness (rivers, groundwater).