This document provides an overview of reengineering efforts in the building material industries of paints, stone, tiles, and marble in India. It discusses new technologies and strategies being used to improve production processes and reduce costs for various materials. In the paint industry, color dispensing machines and IT systems have optimized production scheduling and inventory management. For stone, new drilling technologies increase drilling speed while reducing noise and vibration, and fracture detection and repair systems are being developed. The document also provides brief histories and descriptions of the different types of tiles and marbles used in construction.