Born as child prodigy, Rajan hails from a musical family. His father Shri. K. M. Ganesan is a renowned Nadhaswaram artist. Rajan obtained his diploma in Thavil music from the Faculty of Fine arts, Brathidhasan University, Tiruchirappalli, under the tutetage of the renowned thavil player and teacher Thanjavur Shri.T. R. Govindarajan. He was placed in first class with distinction
Rajan is'B'- high grade artist of All lndia Radio and Doordarshan. Besides his tutelage in Thavil, also took care to qualify himself academically.
Rajan started to give concerts from his childhood and acclaimed fame in his early age itself. lt is worth mentioning that Rajan received honors from the past President of lndia, Dr.A. P. J. Abdul Kalam. Rajan had accompanied many leading Nadhaswaram and Thavil artistes. He toured widely along the breadth and length of lndia. He also visited Singapore. Rajan had participated in many concerts organized by all lndia Radio and Doordharshan. Rajan is accompanying the senior Nadhaswaram artistes Kasim - Babu Brothers from very long time. He accompanied Kasim - Babu Brothers in their US concert tour, during the year 2014.