Municipal Corporation Of Greater Hyderabad — Overflow of drainage

We are the residents bharat nagar, old safilguda we have lodged compliant through telephone regarding overflow of drainage water a week ago, no body has turned up till date. The drainage water is merging with drinking water pipe. I request the officials to do what is needed. Our residential address is h. No.30-64/29, bharat nagar, old safilguda, malkajgiri muncipality