Basu's first movie as an actress was "Ajnabee" (2001). Her first successful movie was "Raaz" (2002). She was chosen for Filmfare Best Actress Award for Raaz. She then appeared in commercial successes like "No Entry" (2005), "Phir Hera Pheri" (2006) and "Race" (2008). "Dhoom 2" (2007) is her biggest commercial success so far. Her work in "Apaharan" (2005), "Corporate" (2006) and "Bachna Ae Haseeno" (2008) was praised by movie critics. This led to her becaming a leading actress in the Hindi movie Industry.