| River | 
            Average annual runoff in the river (a) | 
            Estimated utilisable flow excluding groundwater | 
          
          
            | Indus (up to border) | 
            73.305 | 
            46 | 
          
          
            | Ganga | 
            501.643 | 
            250 | 
          
          
            | Brahmaputra (at Jogigupa) | 
            537.067 | 
            24 | 
          
          
            | Barak and other rivers flowing into Meghna | 
            59.8 | 
            - | 
          
          
            | Godavari | 
            118.982 | 
            76.3 | 
          
          
            | Krishna | 
            67.79 | 
            58 | 
          
          
            | Cauvery | 
            20.957 | 
            19 | 
          
          
            | Pennar | 
            6.858 | 
            6.858 | 
          
          
            | East flowing rivers between Mahanadi and Pennar | 
            16.948 | 
            13.11 | 
          
          
            | East flowing rivers between Pennar and Kanyakumari | 
            17.725 | 
            16.732 | 
          
          
            | Mahanadi | 
            66.879 | 
            49.99 | 
          
          
            | Brahmani and Baitarni | 
            36.227 | 
            18.297 | 
          
          
            | Subarnarekha | 
            10.756 | 
            6.813 | 
          
          
            | Sabarmati | 
            3.812 | 
            1.925 | 
          
          
            | Mahi | 
            11.829 | 
            3.095 | 
          
          
            | West flowing rivers of Kutch, Saurashtra including Luni | 
            15.098 | 
            14.98 | 
          
          
            | Narmada | 
            40.95 | 
            34.5 | 
          
          
            | Tapi | 
            18 | 
            14.5 | 
          
          
            | West flowing rivers from Tapi to Tadri | 
            108.618 | 
            11.936 | 
          
          
            | West flowing rivers from Tadri to Kanyakumari | 
            89.25 | 
            24.273 | 
          
          
            | Area of inland drainage in Rajasthan desert | 
            - | 
            - | 
          
          
            | Minor river basins draining to Bangladesh and Burma | 
            31 | 
            - | 
          
          
            | Total | 
            1,853.494 | 
            690.309 | 
          
          
            | Notes: a : The figures include observed flow as
            corrected for surface utilisation. The effect of actual utilisation of groundwater draft
            is not included  | 
          
          
            | Source: Anon 1988, Water Resources of India, CWC
            Publication No 30/88, Central Water Commission, Government of India, New Delhi, pp 33 and
            37. |