Current Affairs - Places - Discussion

Scientists from the CSIR-National Geophysical Research Institute (NGRI) discovered a massive underground palaeo-channel stretching between Prayagraj and Kanpur in the Ganga-Yamuna Doab region. The channel, buried 10 to 15 metres below the surface and extending nearly 200 km, represents an ancient independent river system distinct from the Ganga and Yamuna rivers. The discovery was made using advanced Heliborne transient electromagnetic technology (H-TEM) along with confirmatory drilling. Researchers identified highly porous clay and sand layers within the channel, making it suitable for groundwater recharge projects. The initiative involved collaboration between CSIR-NGRI, the National Mission for Clean Ganga (NMCG), and the Central Ground Water Board (CGWB).