Which river valley in Ladakh was chosen by archaeologists for surveys?

Solution (By Examveda Team)

The history of Ladakh can be traced back to the Neolithic era with the help of artefacts found in the Nubra Valley region. A detailed, well written history of Ladakh is available from 8^th - 9^th century as Ladakh was mostly a part of other political empires before 8th century.