| Basin-wise Water Potential in the River Basins in Kerala (1974) | ||||||
| Basins | Annual Yield, Mm3 | Annual Utilisable Yield, Mm4 | ||||
| Total | In Kerala | Outside | Total | In Kerala | Outside | |
| Manjeshwar-Uppala | ||||||
| Shiriya | ||||||
| Chandragiri-Morgal | ||||||
| Nileswar-Karingode | ||||||
| Kavvayi-Peruvamba Ramapuram | ||||||
| Kuppam | ||||||
| Valapattanam | ||||||
| Anjarakandy | ||||||
| Tellicherry | ||||||
| Mahe | ||||||
| Kuttiyadi | ||||||
| Chaliyar-Korapuzha-Kallayi-Kadalundi | ||||||
| Tirur | ||||||
| Bharathapuzha | ||||||
| Keecheri-Puzhakkal | ||||||
| Karuvannur | ||||||
| Chalakkudy | ||||||
| Periyar | ||||||
| Muvattupuzha | ||||||
| Meenachil | ||||||
| Manimala | ||||||
| Pamba | ||||||
| Achencovil | ||||||
| Kallada-Pallickal | ||||||
| Ithikkara | ||||||
| Vamanapuram-Ayroor-Mamom | ||||||
| Karamana | ||||||
| Neyyar | ||||||
| Kabbini* | ||||||
| Bhavani* | ||||||
| Panbar* | ||||||
| Total | ||||||
