1998 Had a supporting role in HBO Films’ Emmy-Award winning comedy "Express: Aisle to Glory"
1999 Made feature debut in the culture-clash drama "Freshmen"
2001 Had a supporting role in the Indian-American-themed romantic comedy "American Desi"
2002 Breakthrough role as Taj, opposite Ryan Reynolds and Tara Reid in the comedy "National Lampoon’s Van Wilder"
2003 Cast in the hit comedy "Malibu’s Most Wanted" with Jamie Kennedy
2003 Had a starring role in the independent film "Where’s the Party Yaar?"
2004 Cast opposite John Cho, as two roomates whose overwhelming case of the munchies leads them on a wild search in "Harold and Kumar Go to White Castle"
2004 Starred in the 9/11 NBC drama "Homeland Security"
2005 Cast opposite Ashton Kutcher and Amanda Peet in the romantic comedy "A Lot Like Love"
2006 Cast as Lex Luthor's lackey in "Superman Returns"
2006 Joined the cast of Fox's "24" in a recurring role
2006 Reprised the role of Taj for "National Lampoon's Van Wilder: The Rise of Taj"
2007 Co-starred in the spoof/parody film "Epic Movie"
2007 Played an American-born son of Indian immigrants in director Mira Nair's "The Namesake"
Appeared on the small screen in "Buffy the Vampire Slayer", "Sabrina, the Teenage Witch", and "Spin City"

Credit to Yahoo Movies