Nowadays, environmental pollution indicates major concern for society. Therefore most of the researchers over the world today are concentrating on the ways of utilizing agricultural waste. This waste utilization would not only be economical but also results in pollution control. Beyond the economic and environmental aspects, one cannot fail to see the technical advantages that come from the incorporation of mineral additives to cement. Various researches indicate benefits of rheology, on the mechanical properties and on the durability achieved by the employment of mineral additives in mortar and concrete. The product bagasse ash waste from an in-line sugar industry and bagasse biomass fuel in electric generation industry. When the residue from sugarcane after extracting sugar is burnt under controlled conditions, it gives ash which mainly contains amorphous silica and aluminum ion. This amorphous silica has pozzolanic properties. A few studies have been carried out on the ashes obtained directly from the industry to study their suitability as binders, partially replacing cement. Hence it is possible to use Sugarcane Bagasse Ash as cement replacing to improve quality and minimize the cost of construction. So, this new cement can be used to produce concrete and products that save costs while they ensure a cleaner environment. This paper presents an overview of the Sugarcane Bagasse Ash (SBA) is a by-product of sugar factories obtained after burning sugarcane as well as the results of the laboratory research & SBA as a replacement for cement in Lightweight Concrete. The implementation of this type of material in urban and interurban areas is not only eco-friendly but also a great savage for society.