Mass fish Death in Delhi’s Sanjay Lake in May 2026 due to Mismanagement

May 26, 2026 SANDRPLeave a comment

(Feature Image: Mass fish death in Sanjay lake. Source: TIE)

Several reports in past few days have attributed the mass fish death incident in Sanjay Lake of Mayur Vihar phase II in East Delhi to the ongoing intense heat spell also linking it to adverse impacts of climate change.

However, following updates and a ground visit by concerned citizens reveal the primary reason to be a sharp decline in lake’s water levels for past few weeks. This raises serious questions about the sorry state of affairs concerning management of lakes in the national capital.

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Yamuna Manthan May 2026: Ken-Betwa Linking Needs Urgent Reassessment

May 16, 2026 SANDRPLeave a comment

(Featue Image: Protesters express anger by staging symbolic hangings during the protest during April 5 to 16, 2026. Photo: Amit Bhatnagar/DTE)

Fresh protests over the past month by tribal communities affected by the Ken-Betwa River Linking Project have again raised serious concerns about its environmental impact and social costs. The project is going ahead despite questions over its hydrological assessment and environmental, forest and wildlife clearances. Moreover, the govt has not even explored the available cost effective and better alternatives.

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Environmental Flow · Floodplain · Floods · Urban Rivers · Yamuna River

Yamuna Manthan 0426: Will Govts Ensure Survival of Chambal River Sanctuary?

April 9, 2026 SANDRPLeave a comment

(Feature Image: Index map of Parbati-Kalisindh-Chambal River Interlinking Project. Souce: NWDA)

Two critical developments over the past month have once again highlighted the scale of threats undermining the ecological integrity of the Chambal, the largest tributary of the Yamuna. The rich aquatic life in the Chambal Sanctuary has already been adversely affected by the gradual decline in river flows and unabated illegal sand mining.

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Urban Water Bodies

Delhi’s Waterbodies Going Extinct Under Govt. Watch

February 7, 2026February 7, 2026 SANDRPLeave a comment

(Feature Image: A wetland near Jharoda in Wazirabad has been destroyed by dumping of municipal waste over past two years. Source)

This overview tracking wetlands related developments in Delhi shows that the plight of water bodies, lakes, village ponds has only worsened over the past year. Of the 1,367 water bodies officially recorded, only 674 are visible on the ground, underscoring the failure of govt departments to protect these vital resources. Even the surviving water bodies are under threat, gradually being lost to brazen encroachments, waste dumping and unregulated construction under the watch of the very agencies responsible for their upkeep. And the systematic destruction is happening amid multiple ongoing judicial interventions particularly in the NGT.

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floodplains · Free flowing rivers · River Restoration · Yamuna River

Yamuna Manthan June 2025: Positive water, river stories from Yamuna basin

June 19, 2025 SANDRPLeave a comment

POSITIVE YAMUNA REPORTS

Uttar Pradesh’s Noon river runs again Jalaun farmers in Bundelkhand will not have to toil too much this season to get water for crops. They have almost revived an 81km-long local river that had dried up completely. Community members have restored the drainage basin over a 14km course of Noon river to create a funnel through which water has again entered it. The river had dried up to encroachments and poor rainfall. The revival commenced in 2021 and reached the final stage only recently, with voluntary labour contributions from thousands of local men and women. Officials said the water would start flowing through the entire course of the river in a fortnight. The river is expected to help more than 15,350 farmers.

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Yamuna River

Yamuna Manthan 051224: Native River Fish Species Facing Extinction

December 5, 2024February 4, 2025 SANDRPLeave a comment

(Feature Image: A fish catch comprised mostly of invasive Tilapia species downstream Wazairabad barrage in Delhi in June 2023. Bhim Singh Rawat/SANDRP)

A recent CIFRI (Central Inland Fisheries Research Institute) report submitted to NGT is an eye-opening official document about the fish diversity in Yamuna. The report says that overall native fish species have declined sharply in the river not only in number but in size also due to habitat degradation, pollution and increasing presence of invasive fish species.

The report admits that construction of Farakka barrage has led to complete elimination of Hilsa fish in lower segment of river since 2010. Among other recommendations the report has suggested maintenance of continuous flows in the river and addressing sources of pollution.

Indeed, the freshwater fish species are key indicator of health of a river eco-system and the fish diversity in Yamuna has been pushed to brink by the water abstraction, unsustainable riverbed mining activities and ever-increasing pollution of river waters besides other factors.

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Ken Betwa Project

Yamuna Manthan 050924: Changing parameters of Ken-Betwa Project needs fresh appraisal?

September 5, 2024September 5, 2024 SANDRPLeave a comment

(Feature Image: Dry Ken river beneath bridge at Pandvan in Amanganj, Panna in April 2018. Image taken during Ken river walk by SANDRP & Veditum India)

The controversial Ken-Betwa Interlinking project is undergoing several changes being proposed by central and state governments of UP and MP. Firstly, there are plans to build two new barrages at Pailani and Banda and renovate Beriyapur and Pariksha weirs and Barua Sagar dam apart from renovation of 15 dams and large ponds in Mahoba district. Then, the construction of a 21 km link channel will require 271 ha of forest land.

Similarly, the CM of MP has requested to increase irrigation capacity of Patne-Biarma Irrigation Scheme from 90,100 ha to 2,50,000 ha under the interlinking plan. On the other hand, the CM of UP has suggested inclusion of Hamirpur district in the plan.

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Yamuna River

Yamuna Manthan 0524: SC Stays 4 NBWL cleared Dams in Kalesar Wildlife Sanctuary

May 2, 2024May 2, 2024 SANDRPLeave a comment

(Feature Image: Google Earth Image showing location of 6 proposed dams in Kalesar national park area by Haryana government)

In a welcome judicial intervention, the Supreme Court on April 24, 2024 has stayed building of four dams inside Kalesar National Park in Yamuna Nagar district of Haryana. Issuing notices to Centre and Haryana governments, the apex court noted that the dams namely Chikan, Kansli, Khillanwala and Ambawali would not achieve the intended purposes and would prove detrimental to wildlife, biota and eco-system of the National Park.

Disappointingly the National Board of Wildlife (NBWL) had approved the dams ignoring the Wildlife Institute of India (WII) report warning about adverse impacts of these dams on the terrestrial as well as aquatic biodiversity in the protected area. As per the WII report, the Irrigation Department, Haryana had planned building of six dams costing about Rs. 125 cr. on streams feeding Pathrala river in the national park.

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Yamuna River

Yamuna Manthan 030424: DDA Continues to Destroy River Floodplains

April 3, 2024May 1, 2024 SANDRP1 Comment

(Feature Image: Huge part of Yamuna floodplain raised by massive soil dumping near Bela Estate just upstream Shashtri Park Metro Depot in North East Delhi. Photo Credit: Vivek Nigam, Photo Journalist Amar Ujala, Source: Principal Correspondent in Amar Ujala, Delhi)

In latest example proving Delhi Development Authority’s (DDA) utter failure in protecting Yamuna River floodplains from abuse and encroachment, a large part of floodplain land has been levelled by soil dumping thus raising it by several meters at Bela Estate farm near Shashtri Park Metro Depot. As per the reports, the DDA has allotted about 19.5 ha of floodplain to forest dept for compensatory plantation. The plantation work at the site like at most of the sites on Yamuna floodplain in Delhi has suffered damages during July 2023 floods. And the levelling at the Bela Estate site is being done in the name of protecting the compensatory plantation.

The site is among few remaining floodplain patches available for spread of flood waters. The floodplain area on western bank at the location is less and already developed. Due to natural gradient, the part of floodplain on eastern side undergoes periodic floods. The patch was under several feet floodwater in July 2023. The floodplain immediately downstream the site has already been encroached by the bridge road, metro depot and buildings. Hence, raising of floodplain here would not only reduce spread of flood waters but also hamper the groundwater recharge.

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Yamuna River

Yamuna Manthan 060324: Linking Plans Threatening Yamuna

March 6, 2024March 6, 2024 SANDRPLeave a comment

(Feature Image: PKC link index map. Source: Feasibility Report of Parbati Kalisindh Chambal Link Project. NWDA)

Yamuna the largest tributary of National River Ganga has already been succumbing on account of dams, hydro projects, unsustainable riverbed mining and ever-increasing pollution load in Himalayan, upper and middle segments. Despite this, the river has managed to be in better shape and size in its lower segment mainly due to its tributaries network including Chambal, Sind, Kali Sindh, Betwa, Ken etc. However, now there are river interlinking plans threatening the remaining relatively flowing and living stretch of the river in this very lower segment.

The push for country’s so called first river interlinking plan namely Ken-Betwa River interlinking is going on ignoring the norms, clearances and better viable alternatives. Now, the state governments of Madhya Pradesh and Rajasthan have signed agreement to prepare DPR for Parbati-Kalisindh-Chambal (PKC) river interlinking under modified Eastern Rajasthan Canal Project (ERCP).

The central government has termed the project of national importance and would share the 90 precent of it cost. The entire project is estimated to cost Rs. 72,000 crore and claimed to be built in 5 years. The project proposes interlinking of 6 Chambal rivers namely Parbati, Kalisindh, Kshipra, Kuno, Lakhunder, Mej, Kyul by at least 17 big and small dams and barrages.

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