Bangalore Water Supply & Sewerage Board [Bwssb] — Drainage blocking causing health hazard

Address: Bangalore, Karnataka, 560075

Website: www.bwssb.gov.in

Hello, the main sewage pipeline has some blockage and causing issues to many houses in Vignananagar, 21st cross, Bangalore-75. Many people have complained but nobody turns up or tries to resolve the issue from this government run agency !. I called upon private sewage clearing agency and got the pipeline from our house chamber to mainline cleared up, but because of the blockage in the main line, problem re-occurs within a day or two. Is someone accountable there who can answer please ?
Thanks, Mahesh