All 13 shutters of the Mullaperiyar reservoir have been opened for focused discharge of 5,000 cusecs of water, and it could be elevated in accordance with the rule curve, mentioned Tamil Nadu Water Sources Division (WRD) officers on Saturday (October 18, 2025).

Officers mentioned that following heavy rainfall within the areas surrounding the dam, the influx was 40,733 cusecs and the reservoir stage was at 132.90 toes at 11 p.m. on Friday (October 17). At 3 a.m. (October 18), the storage stage reached 136 ft.

Following this, the officers discharged 1,078 cusecs at 9 a.m. (Oct 18) from the radial gates R, R2, and R3, and at 9 a.m., the water stage stood at 138.45 ft.