PRAYAGRAJ, Sept. 9 -- A major aquifer mapping project under the National Mission for Clean Ganga (Namami Gange) in Prayagraj has uncovered a long-lost ancient river in the Ganga-Yamuna Doab, stretching between Prayagraj and Kanpur. The paleo-channel mapping revealed the river spans around 200 kilometres in length, about 4 kilometres in width, and 15 to 25 metres in depth.

"This discovery of the lost river adds a fascinating chapter to India's geological and cultural history. Satellite imagery and geospatial data were used to trace the river's ancient route and map subsurface water reservoirs," highlighted by a state government spokesperson on Monday.

Beyond this remarkable discovery, the project is also advancing efforts to rejuvenate t...