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Scientific Timeline: Rediscovery of the Saraswati River

This article provides a fact-based timeline of how modern science—through satellite imaging, geology, archaeology, and hydrology—has uncovered compelling evidence for the historical existence of the Saraswati River, once considered a mythical river which disappeared meeting ganges at Allhabad Triveni Sangam.

Source:https://bhuvan-app1.nrsc.gov.in/saraswati/

2002 – ISRO–NASA Remote Sensing Study

  • Scientists from ISRO and NASA used Landsat and IRS-1C satellite data to identify subsurface river channels beneath the Thar Desert.

  • These channels traced a course from the Himalayas to the Rann of Kutch, closely matching Vedic descriptions of the Saraswati.

  • This was the first major scientific study linking satellite imagery with Vedic geography.

2003–2006 – Mapping by GSI & ISRO

  • The Geological Survey of India (GSI) and ISRO confirmed the presence of paleo-channels, ancient dried-up river beds, through remote sensing and ground surveys.

  • Studies suggested that the Sutlej and Yamuna once fed into this river, making it a large Himalayan-fed system.

  • The tectonic shifts that diverted these tributaries likely occurred around 2000 BCE.

2006–2010 – Archaeological Correlation
  • Excavations at key Harappan sites like Rakhigarhi, Kalibangan, and Bhirrana showed:

    • Dense urban settlements along the buried river course.

    • Artifacts consistent with Indus Valley civilization (pottery, seals, fire altars).

  • These finds validated that a major civilization thrived along this now-dry river.

2015 – Groundwater and Sediment Studies
  • A joint effort by Kurukshetra University and the Central Ground Water Board (CGWB) involved drilling across Haryana.

  • Found deep freshwater aquifers and fine sand deposits, indicative of an ancient riverbed.

  • These were dated to around 6000 years ago, confirming that the river had once been active.

2017 – Official Government Acknowledgement
  • The Ministry of Water Resources, Government of India, released a detailed report identifying the historical course of the Saraswati River.

  • The river’s route was traced through Himachal Pradesh, Haryana, Rajasthan, and Gujarat, ending in the Rann of Kutch.

  • The government acknowledged the Ghaggar–Hakra river system as the most likely remnant of the Vedic Saraswati.

2021–2023 – 3D Imaging and LIDAR Studies/h5>
  • Indian researchers used 3D subsurface imaging, LIDAR, and geoseismic modeling to further confirm the buried channels.

  • New studies supported the theory that major tectonic events diverted the Sutlej and Yamuna, leading to Saraswati’s gradual decline.

  • The region’s archaeology, hydrology, and sediment profiles all align with a once-mighty river system that disappeared over time.