| S.No | Sub Basin List | பகுதி | Rivers | District Covered | Reservoirs under WRD Control | No. of Tanks under WRD |
|---|---|---|---|---|---|---|
| Total Kodaiyar basin பகுதி 1618.874 sq.km | ||||||
| 1 | பேச்சிப்பாறை அணை | 170.718 sq.km | Kodaiyar | Kanyakumari | பேச்சிப்பாறை அணை | 0 |
| 2 | Chittar | 166.6 sq.km | Chittar | Kanyakumari | Chittar I, Chittar II | 21 |
| 3 | Perunchani | 162.603 sq.km | Paralaiyar | Kanyakumari | Perunchani | 0 |
| 4 | Kuzhithuraiyar | 344.966 sq.km | Tamiraparani | Kanyakumari | – | 762 |
| 5 | Valliyar | 213 sq.km | Valliyar | Kanyakumari | Mambalathuraiyar | 681 |
| 6 | Pazhayar | 559.665 sq.km | Pazhayar, Poigaiyar | Kanyakumari | பொய்கையார் அணை | 576 |
