The book "Research Methodology" provides a comprehensive exploration of research principles, methodologies, and their significance across various disciplines. It traces the evolution of research from ancient civilizations to modern scientific advancements. The book highlights the importance of empirical evidence, logical reasoning, and systematic inquiry in knowledge generation. Key topics include qualitative and quantitative research, data collection techniques, sampling methods, and report writing. It emphasizes the role of research in decision-making, problem-solving, technological innovation, and societal progress. The book also discusses India's research contributions, from ancient mathematical innovations to modern scientific institutions like ISRO. By fostering critical thinking, ethical research practices, and methodological rigor, this work serves as a valuable resource for students, scholars, and professionals engaged in academic and applied research.