Surat Lignite Power Plant - 4X125 MW, Unit # I to IV: Tender for “Repairing/replacement/strengthening of Casing & hoppers of Electro Static Precipitator (ESP) & casing / structure / support / duct assemblies of flue gas path carries flue gas including ESP maintenance in unit-1 to 4 Boiler for proper and smooth compliance of Revised Environmental Norms for year 2022-24