In 2006, she won popular acclaim for her performance in an Item number during the song Beedi in the film Omkara. The song was a national hit, and Basu's pictuarisation was appreciated.
In 2008 Basu starred in Race, her second collaboration with duo Abbas Mustan, with whom she debuted in Bollywood. Co-starring Saif Ali Khan, Akshaye Khanna, Anil Kapoor and Katrina Kaif, the film performed well at the box office, and Basu's performance was appreciated by critics. Taran Adarsh of indiaFM described her performance as "her best work so far. She’s superb". She also received rave reviews for her recent role in Bachna Ae Haseeno opposite Ranbir Kapoor.