Quality assurance is the major task during road construction work due to scarcity of good quality sub-grade materials like aggregates becoming uneconomical in many local areas. In many situations, available aggregates are not meeting desired properties and specification and if they met may because of extra expenses due to transportation charges from another location. This problem can be overcome by using locally available materials like granular soils as aggregates. Alteration of materials is one of the best practices which not only reduce construction cost but also assure the quality of construction. There are many methods have been tried to enhance engineering properties granular soils, but most of the stabilization techniques of soils often depend on additives such as cement, lime, fly ash, blast furnace slag etc. The current practice is to modify the engineering properties of granular soils using OPC cement to meets the design specifications. In the present work, various engineering tests has been performed to determine the geotechnical properties of cement stabilized granular soil ie strength and compaction characteristics of granular soils (Sandy/gravelly soil) with varying percentages of cement such as 2%, 4%, 6%, and 8% by dry weight of the soil. The strength behavior of cement stabilized granular soil has been analyzed after 7day curing. Cement stabilized granular soils (Sandy/gravelly soil) is used to assess its strength and make it possible as an alternative material for the construction of road sub-base and base courses.