Surat Lignite Power Plant – 4X125 Mw, Unit No. I To Iv: Biennial Rate Contract For; Package-I: Digging, Loading, Transporting, Shifting & Unloading Of Drained Bed Material From Boiler Floors And Package-Ii: Accumulation, Removal, Transporting & Unloading Spilled Ash From Esp & Boiler Floors Of Power Plant To Designated Locations Year: 2025-2027