Music has been a constant source of fascination and constitutes the major and oldest socio-cognitive fields of the human. Music is considered to be the strongest stimulus to induce human emotion and also has the ability to enhance or weaken the listener’s emotion. Self-selected music is predominantly chosen to observe its effect on task performance. Listening to music plays a major role in preventing the mental fatigue associated with performing repetitive and monotonous tasks. This article focusses the reviews on human emotion, methods of evaluating emotion induction, music processing in the brain and its effect on Autonomic Nervous System (ANS). © 2018, Journal of Clinical and Diagnostic Research. All rights reserved.