This document provides an introduction to the ME303 Heat Transfer course taught by Sarthak Nag at the Indian Institute of Technology Mandi. The course will cover key topics in heat transfer over 35 lectures and 7 tutorials across Monday, Wednesday, Thursday and Friday time slots. Students will be graded based on home assignments, quizzes, mid-semester and end-semester exams. The primary textbook is Incropera, DeWitt, Bergman, and Lavine's Fundamentals of Heat and Mass Transfer.