Marble work of thickness 18-20 mm for wall lining (veneer work), backing filled with a grout of average 12 mm thick in cement mortar 1:3 (1 cement : 3 coarse sand), including pointing with white cement mortar 1:2 (1 white cement : 2 marble dust) with an admixture of pigment to match the marble shade (To be secured to the backing by means of cramps, which shall be paid for separately). Black Marble tiles of Kishangarn, Zebra, Makrana , Dhabi or Doongri Zebra thickness 15mm to 20mm Tiles Size 0.3 sqm to 0.50 sqm