This undergraduate textbook introduces Artificial Intelligence concepts in alignment with the APSCHE syllabus (AY 2025–26). It covers AI history, subfields, applications in healthcare, agriculture, and education, as well as ethical issues like bias and fairness. The book also explores Generative AI, ChatGPT, Hugging Face, and prompt engineering, offering practical exercises and insights for students. Designed for B.Sc. (Hons) Physics and related programs, it serves as a foundational resource for learners stepping into the AI era.