Envis Centre, Ministry of Environment & Forest, Govt. of India
Printed Date: Monday, March 31, 2025
Pamba
Basin area, km2
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:
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2235
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Basin area in Kerala State, km2
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:
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2235
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District of Kerala in which basin are located
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:
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Pathanamthitta, Idukki, Alappuzha
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Origin of River
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:
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Pulachimalai Elevation. m : 1650
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Length of main stream, km
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:
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176
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Main tributaries
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:
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Kakkiyar,Arudai,Kakkadar,Kallar, Pambi,Pambiar
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Average annual rainfall, mm
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:
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3600
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Average annual streamflow, Mm3
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:
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3423.7
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Important rainguage stations marked on the map (with code numbers)
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:
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1. Alappuzha (1)
2. Anathodu (2)
3. Mankomb(3)
4. Perunad (4)
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Important discharge stations marked on the map(with code numbers)
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:
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1. Erapuzha (1)
2. Kurudamannil (2)
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Water requirement for wetland for three crops, Mm3
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:
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1440
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Water requirement for gardenland , Mm3
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:
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292
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Water requirement for domestic use (2021 AD), Mm3
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:
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185
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Water requirement for industrial use (2021 AD), Mm3
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:
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400
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Major/medium irrigation projects under construction
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:
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Pamba
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Existing Hydroelectric project
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:
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Sabarigiri
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Navigable length of river, km
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:
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73.6
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(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