<P> The Harappan Civilization has its earliest roots in cultures such as that of Mehrgarh , approximately 6000 BC . The two greatest cities , Mohenjo - daro and Harappa , emerged circa 2600 BC along the Indus River valley in Punjab and Sindh . The civilization , with a possible writing system , urban centers , and diversified social and economic system , was rediscovered in the 1920s also after excavations at Mohenjo - daro in Sindh near Larkana , and Harappa , in west Punjab south of Lahore . A number of other sites stretching from the Himalayan foothills in east Punjab , India in the north , to Gujarat in the south and east , and to Pakistani Balochistan in the west have also been discovered and studied . Although the archaeological site at Harappa was damaged in 1857 when engineers constructing the Lahore - Multan railroad ( as part of the Sind and Punjab Railway ) , used brick from the Harappa ruins for track ballast , an abundance of artifacts have nevertheless been found . The bricks discovered were made of red sand , clay , stones and were baked at very high temperature . As early as 1826 Harappa , located in west Punjab , attracted the attention of a British officer in India , who gets credit for preliminary excavations in Harappa . </P>
<P> The Harappan Civilization has its earliest roots in cultures such as that of Mehrgarh , approximately 6000 BC . The two greatest cities , Mohenjo - daro and Harappa , emerged circa 2600 BC along the Indus River valley in Punjab and Sindh . The civilization , with a possible writing system , urban centers , and diversified social and economic system , was rediscovered in the 1920s also after excavations at Mohenjo - daro in Sindh near Larkana , and Harappa , in west Punjab south of Lahore . A number of other sites stretching from the Himalayan foothills in east Punjab , India in the north , to Gujarat in the south and east , and to Pakistani Balochistan in the west have also been discovered and studied . Although the archaeological site at Harappa was damaged in 1857 when engineers constructing the Lahore - Multan railroad ( as part of the Sind and Punjab Railway ) , used brick from the Harappa ruins for track ballast , an abundance of artifacts have nevertheless been found . The bricks discovered were made of red sand , clay , stones and were baked at very high temperature . As early as 1826 Harappa , located in west Punjab , attracted the attention of a British officer in India , who gets credit for preliminary excavations in Harappa . </P>
the eastern limit of the harappa culture was
the eastern limit of the harappa culture was
Gujarat
Gujarat