The geographical extent of the Chambal Lower sub-basin lies between 76° 38' to 79° 17' east longitudes and 24° 43' to 26° 55' north latitudes of the country. The Yamuna meets its tributary river the Chambal in Chambal Lower sub-basin. The Chambal Lower sub-basin of Ganga basin has a total catchment area of 10,941 Sq.km. The sub-basin drains mostly in Madhya Pradesh state and parts of Rajasthan and Uttar Pradesh. The sub basin map is shown below: