Kallidaikurichi S.Sivakumar hails from a musical family. Siva Kumar had an interest in laya from an early age of five. He had his tutelage from the age of seven from Vaitheerswaran Koil S.Vaidyanathan and started accompanying concerts from the age of sixteen. Later Sivakumar started his advanced training under mridangam maestro Palghat R.Raghu.
Sivakumar has played in all the reputed organizations all over the country. He is the recipient of the first prize in the 1990 mridangam competition conducted by Maharajapuram Viswanatha Iyer Trust.
Sivakumar has traveled widely and has accompanied senior artists like N.Ravikiran, Charumathi Ramachandran, Sikkil Sisters, Malladi Brothers and Vijay Siva.