The book "Studies on Stationary Diesel Engines Operated with Cardanol Biodiesel" offers a comprehensive analysis of the use of Cardanol biodiesel in stationary diesel engines, particularly in the context of Indian agriculture. In light of the growing energy demands and the challenges associated with the energy crisis, the work examines the suitability of Cardanol biodiesel as a sustainable alternative to conventional diesel. Experimental investigations are conducted on various engines to assess the performance and efficiency of up to 20% blends of Cardanol biodiesel. The results demonstrate that these blends can be used in diesel engines without the need for hardware modifications, highlighting the practicality and environmental friendliness of this fuel alternative. The book is aimed at professionals, researchers, and students engaged in renewable energy and its application in engine technology.