By the nineteenth century BC, the two important cities of Harappan culture, Harappa and Mohenjo-daro, disappeared, but the Harappan culture at other sites faded out gradually and continued in its degenerate form in the outlying fringes of Gujarat, Rajasthan, Haryana, and western UP until 1500 BC. But most of the ancestry of both of the groups comes from the Harappan gradient. So the Harappan-related ancestry is actually the single largest source population for almost all people in India today. It mixed with other groups, probably in peninsular India or the south-east as well as groups from the north. It is presumed to be set up near the Saraswati river, which is non existent now. Currently, the village is to the south of the Ghaggar River, which is considered by many scholars to be the defunct remains of the Saraswati river. Excavations have indicated the civilisations in early Rajasthan to be of the Harappan age.