Municipal Corporation Of Delhi — New sewage line

We reside in Surya Kunj Najafgarh where there is currently work of new sewage line is under process. The problem is after the dig the road all the soil is still lying infront of our houses for more than 15days. Even after continuous request to Mistry to remove the soil atleast infront of our houses, they refuse to do it. Kindly look into it. Thankyou