 Nakuba ezinye izazi zicabangela ukuthi njengoba umphakathi ube khona ezigodini zoMfula iSarasvati owomile manje, kufanele ubizwe ngokufanele ngokuthi i-Indus-Sarasvati Civilization, njengoba abanye bewubiza iHarappan Civilization ngemva kweHarappa, eyokuqala yezindawo zayo zokuvubukulwa ngawo-1920, 