Ilaiyaraaja was born as Gnanathesikan in 1943 in a normal middle-class family in Pannaipuram, Theni district, Tamil Nadu, India. When he joined the school his father changed his name as "Rajaiya" but his village people used to call him as "Raasayya". Ilaiyaraaja joined Dhanraj Master as a student to learn musical instruments and the master renamed and called him as just "Raaja". In his first movie "Annakili", Tamil film producer Panchu Arunachalam added "Ilaiya" (Ilaiya means younger in Tamil language) as prefix in his name Raaja and he named as "Ilaiyaraaja" because in the 1970s there was one more music director A. M. Rajah who was a popular one.