"Lal (1997, 9) considers the Sarasvati to have been alive in Kalibangan in the third millennium B.C.E. and dried up at the turn of the millennium: "The Sarasvati dried up around 2000 BC. This clearly establishes that the Rigveda, which speaks of the Sarasvati as a mighty flowing river, has to be assigned to a period prior to 2000 BC. By how many centuries it cannot be said for certain" (Lal, forthcoming)."