R. Madhavan was in the cast of 4 Idiots.
R. Madhavan . In the mid-2000s , Madhavan also actively pursued a career in Hindi films , by appearing in supporting roles in three highly successful productions , Rakeysh Omprakash Mehra 's Rang De Basanti ( 2006 ) , Mani Ratnam 's biopic Guru ( 2007 ) and Rajkumar Hirani 's 3 Idiots ( 2009 ) , which went on to become the highest grossing Indian film of all time upon release .