Kunji Ar
Karinthiri River
Kuttam Puzha
Puyamkutty River
Thundathil Todu
Pichi River
Idamala ar
Idamalayar River
Idamala River
Ponmudi River
Periyar Lake
Idukki Reservoir
Periyar River
Mulla Ar
Chinnar todu
Panni River
Mutira Puzha
Devi Ar
Anaimalai Ar
Ponmudi Ar