Carnatic Music is one of world's oldest and richest Musical traditions. It primarily comprises a monophonoic song based on improvised variations. Indian classical vocal music is divided into two categories: Hindustani (North Indian style of music) and Carnatic (South Indian style of music). Hindustani music & Carnatic music are the two main poles of classical Indian music. The central notion in both these systems is that of a melodic mode or raga, sung to a rhythmic cycle or tala. Both music styles have the same origin & sources according to ancient scriptures but they have many differences too.