The book presents a comprehensive idea of the Samkhya-Yogaepistemology by examining in detail specific representative worksincluding the Samkhyakarika of Ishvarakrishna, Yogasutra ofPatanjali, and Yuktidipika, Matharavritti and other schools ofIndian philosophy. Beginning with some fundamentals like origin ofthe words samkhya and yoga, it discusses important tenets of eachsystem, their reference in the Upanishads, the definition ofepistemology and its relation with ontology and logic. It delvesinto the two kinds of knowledge, direct (prama) and indirect(pramana) as understood by the Samkhya-Yoga system and examinesthese concepts from the viewpoints of other philosophical schoolsas well. It defines perception (pratyaksha pramana) and inference(anumana) and critically assesses the understanding of these indifferent philosophical systems focussing on the Samkhya-Yogainterpretation. It also deals with the components of perception and inferencealong with the types and fallacies associated with them. Verbaltestimony or shabda is again treated in a detailed manner. The workexamines aspects like the nature of word and logical structure of asentence as well. The book will be useful for students and scholarsof Indian philosophy who are keen to grasp the fundamentals of theIndian philosophical systems even while gaining in-depthunderstanding of each school of ancient Indian philosophyparticularly their interpretation of concepts of knowledge.