Speaking to group of scientists, archaeologists and research scholars here she said that an integrated study should be carried out for this purpose with information like historical and archaeological records, hydro-geological, sedimentological, drilling and geochronological data, a press release said here.
She also suggested formation of a core group of scientists, archaeologists and research scholars to fulfil the task, it added.
Earlier, a group of scientists from Regional Remote Sensing Centre, Department of Space, Jodhpur made a detailed presentation to the Minister on the existence of "extinct" Saraswati.
The mythological Saraswati has been linked to the Himalayan rivers like Yamuna in the east and Sutlej in the west.
Radiometric ages of river sediment suggest that the age of Saraswati River may be as old as 28,000 years. The river was believed to have flourished during 8,000 to 5, 000 BC.