Idukki district · Irrigation · Thodupuzha basin · report 18 Sep 2026, 11:00 IST
Storage
92.0%
Previous 96.0%
Water level
41.38 m (135.8 ft)
FRL 42.00 m (137.8 ft)
Spillway release
57.9 cumecs
Latest report
Rain forecast
7 mm
Next 72h 32 mm
Rate of rise(derived)
-0.32 m / 24 h
Downstream exposure
Thodupuzha river below Malankara towards Muvattupuzha
Local bodies on this reach: Thodupuzha, Karimannoor, Muvattupuzha, Arakuzha
District control room: 1077 / 04862-233111
No rule curve (seasonal guide curve) is published for Malankara in a form this platform can verify, so none is shown. Where an operating curve is published — as for Idukki after the 2018 floods — it is plotted against actual storage instead of being estimated.
Malankara is at red alert, with storage up from 86% to 96% and the water level at 41.7 m, just 0.3 m below the 42 m FRL; one spillway shutter is open 10 cm, releasing 49.51 cumecs, alongside drinking-water and power-generation outflows. The rise is being driven by 10.7 mm of recent rain with another 32.1 mm forecast over 72 hours, and the next escalation would be triggered if the level reaches the 42 m FRL or inflows require additional spillway opening.