Bachcahn made his acting debut in 2000 with J. P. Dutta's war film, "Refugee".This was followed by over a dozen of films which were both critical and commercial disasters.His first commercial success came with the 2004 action film "Dhoom", which changed his career prospects. Bachchan later earned critical appreciation for his performances in films such as "Yuva" (2004), "Sarkar" (2005), and "Kabhi Alvida Naa Kehna" (2006), all of which garnered him three consecutive Filmfare Award for Best Supporting Actor.In 2007, he portrayed "Gurukant Desai" a character loosely based on Dhirubhai Ambani in Mani Ratnam's drama film "Guru", which earned him a nomination for Filmfare Award for Best Actor.