Introduction Sterlite is a vertically integrated manufacturer of fiber optic cables. The manufacturing of fiber optic cable starts from silicon chemicals which is converted into preform which is used to draw fiber which are combined to make the end product – fiber optic cable. Preform is a glass rod with extremely high purity and forms the core of the fiber. It is the most important component of the fiber optic cable and the quality of the cable derives to a large extent from the quality of the preform. The manufacturing of preform requires highly specialized manufacturing process. Preform is to optical fiber cable what software was to the computer industry.…