CWC divides India into 22 river basins.
 Top-12 basin in water discharge (TMC) are 
1.Brahmaputra-~24k
2.Ganga-~20k
3.Indus-7.2k
4.Godavari-3.9k
5.Chhimtuipui(Kaladan)-3.8k
6.West flowing Aghanasini to Kanyakumari- 3.6k
7. West flowing Tapi to Aghanasini- 2.8k 1/3
📷- Raj Bhagat