Marble stone flooring with 18-20 mm thick marble stone, as per sample of marble approved by Engineer-in-charge, over 20 mm (average) thick base of cement mortar 1:4 (1 cement : 4 coarse sand) laid and jointed with grey cement slurry, including rubbing and polishing complete with : Udaipur Green Marble Tiles of thickness 18mm to 20mm Slabs sizes above 0.50 sqm