Although conventional concrete used in nowadays has got sufficient strength, the major concern is on reducing the overall cost, material consumption and environmental hazards. Therefore, various materials are incorporated or replaced partially in concrete to improve its strength, savings in cost and material as well. The present work is concerned with use of natural fibers which are cheap and locally available such as dry grass straw in concrete as additive material. Dry grass straw is an agricultural by-product and naturally available fiber in southern India which doesn’t have any economic value is used as a additive or reinforcement in concrete and its positive results in achieving tensile strength was determined which will not only enhance future research but also helps in reduce cost and eco-friendly construction. Compressive strength, split tensile strength and two-point load flexural test for different mix proportion are done to analyze the strength variation, behavior and properties of concrete