| Total Penniyar basin Area 11375.73 sq.km |
| 1 |
Chinnar – West |
125.315 sq.km |
Chinnar |
Krishnagiri |
– |
4 |
| 2 |
Chinnar – East |
308.133 sq.km |
Chinnar |
Krishnagiri |
Shoolagiri Chinnar |
2 |
| 3 |
Markandanadhi |
368.21 sq.km |
Markandanadhi, Nachikuppam Ar |
Villupuram |
– |
4 |
| 4 |
Kambainallur |
919.279 sq.km |
Pulappatti Ar Semmandakuppam Ar |
Dharmapuri |
Thumbalahalli |
36 |
| 5 |
Pambar |
1757.418 sq.km |
Bargur Ar, Mattur Ar, Pambar Ar |
Vellore |
Andiyappanur, Odai, Pambar |
46 |
| 6 |
Vaniyar |
998.385 sq.km |
Vaniyar, Varattar, Thurinjihalli Ar |
Dharmapuri |
Varattar Valli Madurai, Vaniyar |
9 |
| 7 |
Matturar |
58.498 sq.km |
(Isolated) |
Krishnagiri, Tiruvannamalai |
– |
0 |
| 8 |
Kottapattikallar |
410.231 sq.km |
Kovilar |
Dharmapuri |
– |
1 |
| 9 |
Valayar Odai |
85.394 sq.km |
Valayar Odai |
Tiruvannamalai |
– |
0 |
| 10 |
Ramakal Odai |
14.415 sq.km |
Ramakal Odai |
Tiruvannamalai |
– |
0 |
| 11 |
Pambanar & Varattar |
292.092 sq.km |
Pamban Ar |
Tiruvannamalai |
– |
1 |
| 12 |
Aliyar |
211.07 sq.km |
Aliyar |
Tiruvannamalai |
– |
14 |
| 13 |
Musukundanadhi |
179.255 sq.km |
Musukunda Ar |
Villupuram |
– |
18 |
| 14 |
Thurinjalar |
853.623 sq.km |
Thurinjalar |
Tiruvannamalai |
– |
68 |
| 15 |
Gadilam |
1562.903 sq.km |
Gadilam, Malattar, Seshanadhi |
Cuddalore Villupuram |
– |
178 |
| 16 |
Upto Krishnagri Reservoir |
772.638 sq.km |
Thatchinapinakini |
Krishnagiri |
Kelavarapalli, Krishnagiri |
9 |
| 17 |
Krishnagiri to Pambar |
894.518 sq.km |
Pambar |
Krishnagiri |
– |
47 |
| 18 |
Pambar to Thirukovilur |
1002.393 sq.km |
Pennaiyar |
Tiruvannamalai Villupuram |
Sathanur |
65 |
| 19 |
Lower Pennaiyar |
561.963 sq.km |
Pennaiyar Malattar, Nariyar |
Cuddalore Villupuram |
– |
107 |
