Supply of ISI Marked Centrifugally Cast (Spun) Ductile Iron (K-7) Socket & Spigot Pressure Pipes required for the work of “Improvement of Water supply to Nayagarh Municipality.’’ (Distribution net work Zone-1,2,3 & 6) & Supply of ISI Marked Centrifugally Cast (Spun) Ductile Iron (K-7) Socket & Spigot Pressure Pipes required for the work of “Improvement of Water supply to Nayagarh Municipality.’’ (Distribution net work Zone-4,5,8 & 9), etc (EXPIRED)