Thalainayar Narayanaswamy Sivakumar (T. N. Sivakumar) ,(Telugu: తీ. ఎం. శివకుమార్) is a visually challenged carnatic flutist guru from Chennai. He is a disciple of Sri T. R. Mahalingam. He has performed in various cultural concerts across the globe.He was told by Kanchi Paramacharyar H.H.Chandrashekara saraswathy that he would be leading the rest of his life with a bamboo stick;. Sri. Sivakumar lost his father at an early age and was brought up by his mother. His mother was very well versed in carnatic music who was his first teacher. Sri.Sivakumar started learning vocal music from his mother and started learning the flute from the age of seventeen. He started learning many songs just by listening to the radio. She contributed a lot by taking her visually challenged son everywhere to learn music taught him to play songs in a particular style. He mastered many songs composed in a way his mother sang.