Claim: R. Madhavan was in the cast of the biopic Guru.
Evidence: 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 -LRB- 2006 -RRB- , Mani Ratnam 's biopic Guru -LRB- 2007 -RRB- and Rajkumar Hirani 's 3 Idiots -LRB- 2009 -RRB- , which went on to become the highest grossing Indian film of all time upon release.