... The first large-scale excavations of the civilization were conducted in the 1920s by British explorers. Researchers claimed in 2016 that the Indus Valley civilization began nearly 2,500 years earlier than thought, which means it began nearly 8,000 years ago, making it older than the Mesopotamian and Egyptian civilizations. The revelation prompted the debate over whether Middle-Eastern settlements can be considered as the “Cradle of Civilization.”...
https://littleindia.com/900-year-drought-wiped-out-indus-valley-civilization-shows-iit-kharagpur-research