The Kavvayi River basin is located between 120 05’ to 120 15’ North latitude and 750 05 ‘ to 750 20’ East longitude. It spreads over the district of Kannur and Kasargod.[1][2]

It has a total area of 164.76 km2 covering 14 villages spread over 9 local bodies in the two districts. Kavvayi River or Thattar River emerges from the Cheemeni Kunnu at elevation 114 m. above MSL having a length of 31 km and joining directly to Kavvai backwater. Kavvayi River is typical among the 14 midland-originated rivers in Kerala. It has a watershed area confined to midland hillocks and their valley.

Kavvayi River includes five rivers, the Kavvayi River, and its tributaries- Kankol, Vannathichal, Kuppithodu, and Kuniyan – flow together to form the Kavvayi Backwaters.[3] The four Kanams, namely Kanayi, Vannathi, Easwaran, and Vattappoyil, in the Kavvayi River Basin were documented by researchers and have 452 plant species.[4]

Rererences

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  1. "From Kavvayi river to championship waters: E Swaliha's sporting feats earn Sthree Shakthi Award". @onmanorama. Retrieved 23 March 2026.
  2. Ranjith, K. R. (20 May 2014). "As Habitats Come under Stress, Indian Foxes Vanish without a Trace". The New Indian Express. Retrieved 23 March 2026.
  3. "Poor water quality in Manimala river basin". The Hindu. 4 May 2015. ISSN 0971-751X. Retrieved 23 March 2026.
  4. "A green world in Kerala's laterite hills". The Hindu. 10 January 2016. ISSN 0971-751X. Retrieved 23 March 2026.