<P> Mohenjo - daro was built in the 26th century BCE . It was one of the largest cities of the ancient Indus Valley Civilization , also known as the Harappan Civilization , which developed around 3,000 BCE from the prehistoric Indus culture . At its height , the Indus Civilization spanned much of what is now Pakistan and North India , extending westwards to the Iranian border , south to Gujarat in India and northwards to an outpost in Bactria , with major urban centers at Harappa , Mohenjo - daro , Lothal , Kalibangan , Dholavira and Rakhigarhi . Mohenjo - daro was the most advanced city of its time , with remarkably sophisticated civil engineering and urban planning . When the Indus civilization went into sudden decline around 1900 BCE , Mohenjo - daro was abandoned . </P>
why is mohenjo daro considered one of the most advanced cities of its time
sophisticated civil engineering and urban planning