The Science & Technology lesson covers basic and applied science relevant for UPSC CSE, including Physics, Chemistry, Biology, Biotechnology, IT, space research, defense technologies, and emerging technologies like AI and robotics. The lesson emphasizes current developments such as ISRO missions, DRDO projects, health technology, and scientific innovations. Aspirants are trained to understand the practical implications of scientific advancements and their significance for India. This lesson ensures conceptual clarity, prepares students for analytical questions, and helps them relate science and technology with governance, economy, and society.