Multiple choice The Indus Valley Civilisation flourished during 3500-2500 B.C. 2500-1750 B.C. 1750-1000 B.C. 1950- 2500 B.C. Reveal answer Fill a bubble to check yourself B Correct answer Explanation The Indus Valley Civilization flourished during its mature phase from approximately 2500 BCE to 1750 BCE. This period represents the height of urban planning, trade, and cultural development in cities like Mohenjo-daro and Harappa.