In Oct. 2025, we could find at least 06 flood monitoring sites of Central Water Commission (CWC), where rivers have crossed their Highest Flood Levels (HFL) after the end of South West Monsoon season 2025 on Sept 30 2025. Of the 6 sites, 2 each are in Brahmaputra basin in W Bengal and Ganga basin in Bihar. 1 site Anantharam on Musi river in Telangana is part of Krishna basin and 1 site Marella on Gundlakamma river in Andhra Pradesh is part of East Flowing Rivers between Mahandi and Pennar basin.
Continue reading “India’s Rivers in Extreme Floods in Oct 2025”Tag: Teesta
Rivers Flowing in Extreme Floods in September 2025
(Feature Image: Yamuna river in severe flood at Mawi site in Kairana, UP on Sept. 02, 2025)
We have been able to observe river attaining new Highest Flood Level (HFL) at least at 18 flood monitoring sites of the Central Water Commission (CWC) in the last month of South West Monsoon 2025. These 18 sites are spread over 7 States & UT, including Jammu & Kashmir (6 sites), Maharashtra (4 sites), Uttar Pradesh (3 sites), Haryana (2 sites), Madhya Pradesh, Telangana and Karnataka (1 each site) comprising 5 river basins including Indus (6), Ganga (6), Krishna (3), Tapi (2) and Godavari (1).
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CWC, IMD Need to Improve Extreme Weather Forecast Services
The rising numbers and intensity of western disturbances (WDs) in pre-monsoon months are causing excessive but short rainfall spells across the country particularly in the Himalayan states. These events are then resulting in sudden flash floods and taking a huge toll on human life and public infrastructure. However, the specific monitoring and warning services for such disasters by the Central Water Commission (CWC) & Indian Meteorological Department (IMD) are largely unavailable as these agencies are mainly forecasting floods during the monsoon.
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EAC & FAC Decisions on Dams, Hydro, Irrigation Projects in 2024
This annual overview tracks the minutes of meetings held by Expert Appraisal Committee (EAC) for River Valley and Hydropower Projects between 20 December 2023 and 31 December 2024 for consideration of Dams, Hydroelectric Power (HEP), Pumped Storage Hydro Projects (PSP) and Irrigation related proposals seeking Terms of Reference (TOR) and Environment Clearance (EC) approvals. The analysis also covers various water projects related proposals considered by the Forest Appraisal Committee (FAC) between 15 December 2023 and 26 December 2024 for Forest Clearances (FC).
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Aug 2024: Massive Landslide damages NHPC’s Teesta V Hydropower station
A massive landslide (location: [27.2515, 88.4594]) at Dipu Data near Singtam in Gangtok district that brought down a huge part of a hill above the power house of the NHPC’s 510 MW Teesta V hydropower project on Teesta river in Sikkim at 7.30 in the morning of Aug 20 2024 has damaged the power house. The GIS building above the underground power house located at Balutar can be seen getting destroyed in the massive landslide and getting buried under the debris. The project has been out of operation since the Oct 4 2023 GLOF disaster in Teesta river[i] had over topped the dam and seriously damaged the project.
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DRP BANGLADESH 2023: Rivers dominate in a River Intense Nation
In this overview of 2023 issues related to Dams, Rivers and People in Bangladesh, we see how rivers dominate the discourse in one of the most river intense nations of the world. As expected, as India and Bangladesh share the rivers in so many ways, the bilateral issues also dominate. These includes fisheries, power sharing, navigation, besides of course water sharing. As expected, Teesta water sharing issue dominates more than others.
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2023: People’s Protests Against Hydro & Dam Projects in India
(Feature Image: Joshimath locals take part in a protest rally against the NTPC project in landslide-hit Joshimath town of Chamoli district, Uttarakhand. PTI Photo/Source: Financial Express)
This yearend overview compiles the ten remarkable reports on community led protests against dam and hydro power projects in India in 2023. The report also covers some important judicial and government decisions regarding dams related issues during the year. It further compiles some relevant reports which significantly highlight bleak future of hydro and dam projects due to persistent decline in power generation, rise in construction cost and corruption issues. The first part of the overview detailing on dams and hydro projects related disasters in 2023 can be seen here.
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DRP NB 161023: Kaddam Dam Rehabilitation in Telangana: Many more will need this
(Kaddam dam spilling over with flood waters in July 2023. Image Source: SM)
Telangana’s Kaddam Dam, built with inadequate spillway capacity, has seen multiple threats and disasters over the years, starting from the very first year after its commissioning in 1958. The dam again saw threat of being washed away during monsoon this year. The Telangana government has decided to rehabilitate the dam at a cost of Rs 640-700 Cr, by reconstruction of spillway and installation of new gates. We hope the new spillway capacity will be in line with the changed monsoon rainfall pattern and will be able to take care of the higher probable maximum precipitation and higher probable maximum flood. Though we are unlikely to get to know how this is going to happen, as the standard operating procedure of all dam owners in India is secrecy rather than transparency even in dam safety aspects. One also hopes this is done at the earliest, and till that is achieved, the dam rule curve will be changed to ensure the dam does not face disastrous situations during monsoon.
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Oct 2023: CWC Flood Forecast FAILS during Teesta Glacial Floods
(Feature Image: NHPC’s Teesta VI hydro project at Sirwani, Sikkim affected by GLOF deluge on Oct. 04, 2023. Image Source: Weatherman Shubham.)
The Teesta River has witnessed unprecedented scale of floods following South Lohnak Glacial Lake Outburst Flood (GLOF) event in the intermittent night of October 03-04, 2023. The details and impact of the deluge can be seen here. The incident has once again underlined shortcomings in Central Water Commission’s (CWC) flood monitoring and forecasts work.
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Glacial Lake FLood destroys Teesta-3 Dam in Sikkim, brings wide-spread destruction
A Glacial Lake Outburst Flood (GLOF) that originated at South Lhonak Glacial Lake at around 00.40 hours on Oct 4, 2023, washed away the 60 m high dam of Sikkim’s biggest hydropower project, the 1200 MW Teesta 3 HEP. The flood has brought unprecedented disaster all along the river in Sikkim and further downstream in W Bengal and then Bangladesh. Central Water Commission (CWC) reported early in the morning of Oct 4 that there was cloud burst at the site of the lake burst, the cloud burst could have played the role in triggering the lake burst. (Feature image above: A combination of before after photos of Teesta 3 dam put together by Siddharth Agarwal.)
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SANDRP 