Polluted stream contaminates Bengaluru's Doddakallasandra lake: Who is to blame?
A resident took to Twitter to alert Bengaluru's civic body of the contamination of the Doddakallasandra lake.
A Bengaluru resident, Raghavendra B Pachhapur, who works at ActionAid Association, a a company that promotes ecological justice, stood up for a dying lake in the city's Doddakallasandra area and alerted officials from local body - the Bruhat Bengaluru Mahanagara Palike or BBMP - to save it from contamination. The man went on Twitter to voice his concerns and said he has filed six complaints so far with no action taken yet.

“Polluted stream unstoppable @ #DoddakallasandraLake in-spite of four official complaints to @karnatakakspcb @Srinivas_IFS @BBMPCOMM efforts gone in vain Should we approach @CPCB_OFFICIAL! @urbanvoicesin @SDGoals @Sdg13Un @WFRising @Namma_Bengaluru #ActForWater #ActForEcology,” he wrote on September 30.
READ | Bengaluru’s lakes hit with continued encroachments and contamination
He posted a video showing the lake on a geographic map and marking the area where a polluted stream, according to him, has been entering the lake for the last three years. The polluted stream has been entering the lake from private properties beside it, the video showed. The sewage water has accumulated to the extent that it has stagnated on the lake surface, he underlined. Five official complaints have also been lodged with the KSPCB - the Karnataka State Pollution Control Board - but apparently in vain.
READ | Sewage flow causes fish kill in Bengaluru's Haralur lake
The tweet, however, garnered attention of the Doddakallasandra Lake Protection Committee, which replied, “We request the concerned officials at #KSPCB to look into the matter on an urgent basis and find a sustainable solution for the issue.”
However, after no apparent response from the board, the man went on to seek help from Bengaluru's civic administrative body - the BBMP. "Six complaints over 23 months to #BBMP. Unable to resolve the problem of a contaminated stream next to #DoddakallasandraLake. #ActForWater #ActForEcology @ecology_tweets @Jahnaviravindra @shreyas_ToI @aksheevthakur @ShreyashiMukh16 @SnehaVRamesh @nkaggere @pinkychandran @cksaysso," Pachhapur wrote in a tweet on Thursday.
Attaching another video of the encroachment and violations, he also posted a list of complaints given to the concerned authorities so far. The video in the tweet showed that the complaints to BBMP were made using the Sahaya app on which the status of the complaints were ‘resolved’.
Pachhapur said that the community around Doddakallasandra lake is conscious about lake conservation and that they raise issues as and when it happens. “We have been successful so far in protecting water quality under Class-D, for the last 10 months after rejuvenation. However, BBMP as a custodian of lakes has the responsibility to protect and conserve lakes in Bengaluru,” he said.
IAS officer Tushar Giri Nath, BBMP's chief commissioner, told Hindustan Times that the sewage flow in Doddakallasandra is due to the incomplete construction of a sewage line by the BWSSB - Bangalore Water Supply and Sewerage Board, another local body. “The Doddakallasandra lake is mainly contaminated due to sewage flow, for which BWSSB is responsible. When they finish constructing a sewage line in the sea, only then the lake can be prevented from getting polluted,” he said.
READ | Pattandur Agrahara Lake: BBMP books activist over social media campaign
A similar social media campaign in April - to save the Pattandur Agrahara lake in the Whitefield area - had caught the attention of BBMP officers, who were accused by the Residential Welfare Association (RWA) of constructing a road in its buffer zone. The BBMP in May booked lake activist Sandeep Anirudhan, the president of Whitefield's Residential Welfare Association (RWA) for “spreading propaganda” and “inciting people” through social media posts.
ABOUT THE AUTHORYamini C SYamini CS is a Senior Content Producer at Hindustan Times with nearly six years of experience in digital journalism. She is part of the India News desk, where she works on a wide range of stories cutting across civic issues, city-based developments, politics, governance, public policy, breaking news, trending topics, and international affairs that have an impact on India. Her role involves tracking fast-moving developments, verifying information from official and on-ground sources, and presenting news in a clear, accessible format for a digital-first audience. A significant part of her work includes handling live blogs during major news events, such as elections, court verdicts, political developments, civic disruptions, protests, weather-related alerts, and unfolding national or international incidents. Through live coverage, she focuses on timely updates to help readers follow complex stories as they evolve. Before moving to the broader India News desk, Yamini was associated with the Bengaluru desk at Hindustan Times, where she extensively covered urban governance, infrastructure, traffic and transport issues, weather events, public grievances, and civic administration in the city. This experience strengthened her grounding in city reporting and sharpened her focus on citizen-centric journalism. She began her career as a correspondent with Reuters after completing a postgraduate diploma in journalism from the Indian Institute of Journalism and New Media. Her early training instilled a strong emphasis on accuracy, sourcing, and news ethics, which continue to shape her reporting style. Outside of work, Yamini enjoys reading across genres, listening to music, and spending time with her family, which help her maintain balance in a fast-paced newsroom environment.Read More

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