Panniyar river is a tributary of the Periyar River which is the longest river in Idukki District of Kerala, India.[1] Malayalam: പന്നിയാർ. The river flows through Idukki district. The tributaries of the Panniyar River are the Uchilkuthipuzha, Mathikettan Puzha, Chemmannar and Nander Puzha, which originate from the hills of Matikettan National Park.[2] Ponmudi dam is built across the river as a part of Panniyar Hydroelectric project.[3] After generating power, the water is released to Panniyar river itself. The tailwater from the Panniyar powerhouse and the spill from Ponmudi dam reach the Kallarkutty dam.[4] It then flows through Udumbanchola, Devikulam, Kothamangalam, Muvattupuzha, Kunnathunadu, Aluva, Kodungallur and Paravur. Panniyar is the source of drinking water for Rajakumari, Rajakkad, Shanthanpara and Senapati in Idukki district.[5][6]

Panniyar River
Location of mouth
Location
Country	India
State	Kerala
District	Idukki District

See also

• List of rivers of India

References