Sewage has been flowing back into homes in KAS Officers’ Colony and Bank Officers’ Colony in BTM Layout 2nd Stage for a year now, residents say.
Bengaluru: Residents of BTM 2nd Stage in southern Bengaluru say sewage has been flowing back into their homes for at least a year now.
The issue cropped up in KAS Officers' Colony and Bank Officers' Colony (BOOHBCS) after Namma Metro took up works in the locality. “Heavy vehicles deployed by the BMRCL damaged infrastructure in the area. We have been chasing BWSSB officials for a solution but there has been no improvement,” said a representative from the Spandana Nagareeka Vedike, the registered residents’ welfare association (RWA) representing BOOHBCS.
Residents fear that the backflow of sewage into homes and roads could trigger a health crisis in the area.
“In December 2025, even without rains, Silk Board junction and our area were flooded with sewage. This contaminated our drinking water supply and has led to a massive surge in mosquito breeding, posing a direct threat to public health,” another resident said.
According to sources in the Bengaluru Water Supply and Sewerage Board (BWSSB), the water board has decided to upgrade the sewage treatment plant (STP) at Madiwala lake from 4 mld to 75 mld, helping resolve the issue to a great extent.
That apart, the board also intends to take up some pipeline repairs.
Residents also pointed out that poor coordination between the BWSSB and the Greater Bengaluru Authority (GBA) had delayed the work on ground.
“Every time we ask BWSSB officials, they say they have not received permission from the GBA to take up road-cutting works. There is hardly any coordination,” an RWA member said.
BWSSB officials said that they would look into the issue.