Rainfall Runoff Co-Relationship done by many approaches such as software, mathematical, empirical, hydrograph. Models of different types provide a means of quantitative extrapolation or prediction that will helpful in decision making. In present paper focused on empirical methods for rainfall runoff co-relationship. Rainfall data for the important rain gauging site was considered for flood years (1991, 1994, 1996, 1997, 1998, 2005, 2006, 2007). INGLIS AND DE SOUZA'S, LACEY'S, PARKER'S BRITISH AND USA, AND TAPI BASIN Formula use for corelationship. Utilizing all formula, a rainfall runoff co-relationship was obtained using the regression equation.