Semecarpus anacardium L.f. (Bhallataka) which grows naturally without any cost and care by the time, is analyzed and investigated as new applications for “Bhavanol’’ in the polymer field. Semecarpus anacardium oil (Bhavanol) is a valuable agro-byproduct and renewable resource which consists mainly of substituted phenols. Renewable natural resources that can be serving as alternative feed stocks for the chemical industry. In this respect Bhavanol (Semecarpus anacardium nut oil) which is isolated from root bark extracts is an abundant agricultural by product, holds considerable promise as a source of unsaturated phenol, an excellent monomer for polymer and chemical industries.