Envis Centre, Ministry of Environment & Forest, Govt. of India

Printed Date: Monday, March 31, 2025

Pamba

  

Basin area, km2

:

2235

Basin area in Kerala State, km2

:

2235

District of Kerala in which basin are located

:

Pathanamthitta, Idukki, Alappuzha

Origin of River

:

Pulachimalai Elevation. m : 1650

Length of main stream, km

:

176

Main tributaries

:

Kakkiyar,Arudai,Kakkadar,Kallar, Pambi,Pambiar

Average annual rainfall, mm

:

3600

Average annual streamflow, Mm3

:

3423.7

Important rainguage stations marked on the map (with code numbers)

:

1.     Alappuzha (1)

2.     Anathodu (2)

3.     Mankomb(3)

4.     Perunad (4)

Important discharge stations marked on the map(with code numbers)

:

1.     Erapuzha (1)

2.     Kurudamannil (2)

Water requirement for wetland for three crops, Mm3

:

1440

Water requirement for gardenland , Mm3

:

292

Water requirement for domestic use (2021 AD), Mm3

:

185

Water requirement for industrial use  (2021 AD), Mm

:

400

Major/medium irrigation projects under construction

:

Pamba

Existing Hydroelectric project

:

Sabarigiri

Navigable length of river, km

:

73.6

 

(Note: Pamba River is the third longest river in the South Indian state of Kerala and the longest river in the erstwhile princely state of Travancore. Sabarimala temple dedicated to Lord Ayyappa is located on the banks of the river Pamba. River Pamba is considered as the Dakshina Ganga due to its association with Kerala's Largest Pilgrim Centre - Sabarimala. Lord Ayyappan (Sri Dharmasastha) appeared to the Pandalam Raja as a child on the banks of the Pamba River. Bathing in the river, is equivalent to bathing in the Holy Ganges River believed to absolve one's sins, is a requirement before commencing the trek through the forest to the Ayyappan Temple atop Sabarimala. It flows through Ranni, Ayroor, Pathanamthitta, Kozhenchery, Chengannur, Kuttanad and Ambalappuzha Taluks and finally empties into the Vembanad Lake. A famous Anjana temple is situated near this bank. Kuttanad, an important rice cultivating area in Kerala gets the irrigation water from the Pamba river. The Pamba basin is bounded on the east by the Western Ghats. The river shares its northern boundary with the Manimala River basin, while it shares the southern boundary with the Achankovil River basin.)

 

 Pamba River Map