Delhi Jal Board — sewer construction waste on roadside

Address:

Z-1/6 ,Model town -2 ,Delhi, 110009

We had sewer line changed in our lane in model town z block - z-1/6 and the contractor has left a heap of waste on my wall. It's been a month and there is no resolve to the situation. We have had word with the djb local office numerous times however the waste is still there and accumulating more. It is creating pollution as the dirt keeps flying around and is with just sitting there unecesaarily.