Tender For repair to sewerage/ drainage system (nldm, uhl, mnpr, krli & other railway colonies), bridge waterway cleaning (br.no. 69, 71, 62, 38, 1, 93, 99, 154, 228, 229, 230, 212, 243 & other bridges on sir-dlpc section) in the section of sse/w/sir & nldm under aden/sir.