National Ganga River Basin Authority

Location..


Ganga basin is the largest river basin in India interms of catchment area, constituting 26% of the country's land mass (8,61,404 Sq. km) and supporting about 43% of its population (448.3 million as per 2001 census). The basin lies between East longitudes 73°30and 89° 0 and North latitudes of 22°30 and 31°30, covering an area of 1,086,000 sq km, extending over India, Nepal and Bangladesh. About 79% area of Ganga basin is in India. The basin covers 11 states viz., Uttarakhand, U.P., M.P., Rajasthan, Haryana, Himachal Pradesh, Chhattisgarh, Jharkhand, Bihar, West Bengal and Delhi. The drainage area in each state is given in Table ..

 State Drainage area (km )
Uttarakhand and Uttar Pradesh  294,364
Madhya Pradesh and Chhattisgarh  198,962
Bihar and Jharkhand  143,961
Rajasthan  112,490
West Bengal  71,485
Haryana  34,341
Himachal Pradesh  4,317
Delhi  1,484

Total  861,404

Ganga