When was ancient India discovered?

Ancient India was not "discovered" in the traditional sense, as it has been continuously inhabited for thousands of years, with its history dating back to the Indus Valley Civilization around 2500 BCE. However, significant archaeological discoveries, such as those at Harappa and Mohenjo-Daro in the 1920s, brought global attention to its ancient cultures. These findings revealed advanced urban planning, art, and trade practices, marking a pivotal moment in the understanding of ancient Indian civilization.