“Surat Lignite Power Plant - 4X125 MW, Unit # 1 to 4: Replacement of existing damaged & unsafe roofing & cladding sheets with new Color coated Galvalume sheets, Roof Gutters with Aluminum sheets and Rain water pipe lines with new U-PVC pipes for ESP-1, ESP-2, ESP-3, ESP-4 and Unit-3 & 4 Deaerator roofs at Power Plant”.