Karthi, the youngest son of actor Shivakumar and brother of Tamil heartthrob Suriya, is celebrating his birthday today. 

He has made his mark the world of Tamil cinema. His first film -- Ameer's Paruthi Veeran -- won him rave reviews and considerable number of fans all across the globe.

Today, Members of the Fans Associations of Karthi gathered in large numbers and cheerfully greeted their favorite star on his birthday.