I found this accidentally in http://en.wikipedia.org/wiki/Yuvan_Shankar_Raja , here it is mentioned rahman copies from Yuvan which is so funnny but irritating.
Yuvan Shankar Raja's collaborations with the directors Selvaraghavan, Ameer, Simbu, Venkat Prabhu and Vishnuvardhan have resulted in very successful albums. Many of his soundtracks feature a variety of songs drawing influence from different traditions. Upcoming features include Silambattam,Kettavan,Yogi (tamil film), Sarvam. He is the only south Indian composer, who never worked for Hindi movies to be recognised by Sony BMG to produce an Hindi/English album.some of the fools who just listen to music find faults with some people who makes lots of efforts for a film's music and BGM like yuvan.He's highly respected by film media and music maestro A.R.Rahman. Many music directors copy beats including rahman as they admire those bgms and some are coincidental
