Dr. Ajay Thakur.
Because his class isn’t just a regular class but a repository of new ideas and thoughts that surprise you, hold you in awe and most importantly teach you something and make you think. I have had the pleasure of being his student of physics for a semester, and every class of his gave me goosebumps.
His lucid approach to complex problems, examples making real life complex scenarios simple and most importantly his interest to teach, makes his teaching impeccable and best.