Narmada is very important and biggest river in Gujarat. For irrigation and drinking water supply in Gujarat the Sardar Sarovar Dam Project is vital and is constructed on Narmada River.
Narmada river originates from Amarkantak in Vindhyachal hills Madhya Pardesh, flow thourgh entire Madhya Pradesh and finally meets to bay of Khambhat in Arabean Sea. Its length is about 1312 Kilometer and catchment area is about 97410 sq.km. Orsang river is right bank tributary and Karjan river is left bank tributary of Narmada river.
Narmada (Sardar Sarovar) dam is located at about 1200 Kilometer distance and having about 88000 Sq. Kilometer catchment area. Though this dam is facing some legal issues regarding to its height but still it is very important for Gujarat. Sukhi, Ani, Unch, Heran rivers are sub tributaries of Orsang river. Jojawa dam is situated on river Orsang at 96 Kilometer distance having 870 Sq. Kilometer catchment area. Karjan dam is situated on Karjan river at 54 Kilometer having 1404 Sq. Kilometer catchment area.