The Best Actress award was shared jointly by Vidya Balan for Paa and Kareena Kapoor for 3 Idiots.
The Best Director trophy went to Rajkumar Hirani for 3 Idiots, while he along with Abhijat Joshi, Vidhu Vinod Chopra won the Best Story award for the same film.
The film, a coming-of-age comedy about three students at a top engineering college, had been nominated in 12 of the 13 main categories in the 11th Indian International Film Academy (IIFA) awards.
It has already won eight of the 12 technical awards, including Best Screenplay and Best Cinematography.
<< Click Here To Read All about IIFA Awards 2010 With all photos from the event Click Here >>
Sharman Joshi won the Best Male Supporting Actor award for his role in 3 Idiots, while Divya Dutta received the Best Female Supporting Actress award for her performance in Dilli 6.
3 idiots won another award with Boman Irani clinching the statuette for his negative role in the film.
Sanjay Dutt laughed all the way to bag the award for best performance in a comic role in All the Best.
Composer Pritam pipped maestro A R Rahman to win the Best Music Director award for Love Aaj Kal while Shaan was adjudged the Best Singer (Male) for Behti hawa sa tha woh (3 Idiots). Kavita Seth won the Best Singer (Female) for Iktara in Wake Up, Sid!.
Swanand Kirkire won the Best Lyrics award for 3 Idiots.
Sri Lankan beauty Jacqueline Fernandez jointly won the Best Debut Female Actor along with Mahie Gill for their role in Aladin and Dev D, respectively.
Omi Vaidya aka Chatur Ramalingam of 3 Idiots shared the debut male honours with Jackky Bhagnani for Kal Kissne Dekha.
Veteran filmmaker J Om Prakash, maternal grandfather of Hrithik Roshan, and yesteryear siren Zeenat Aman were felicitated with the Lifetime Achievement award.
IIFA AWARDS 2010 WINNERS LIST
3 Idiots (Vidhu Vinod Chopra)
Best Performance in a Leading Role (Male)
Amitabh Bachchan for Paa
Best Performance in a Leading Role (Female)
Kareena Kapoor for 3 Idiots
Vidya Balan for Paa
Rajkumar Hirani for 3 Idiots
Best Performance in a Comic Role
Sanjay Dutt for All The Best
Best Performance in a Negative Role
Boman Irani for 3 Idiots
Best Performance in Supporting Role (Male)
Sharman Joshi for 3 Idiots
Best Performance in Supporting Role (Female)
Divya Dutta for Delhi 6
Debut of the year (Male)
Debut of the year (Female)
Playback Singer (Female)
Kavita Seth for Ek Tara (Wake Up Sid)
Playback Singer (Male)
Shaan for Behti Hawa Sa Tha Who (3 Idiots)
Swanand Kirkire for 3 Idiots
Pritam - Love Aaj Kal
Abhijat Joshi, Raj Kumar Hirani, Vidu Vinod Chopra for 3 Idiots
Outstanding Achievement by an Indian Internationally
IIFA Green Global Award
List of Technical Awards Winners
Abhijat Joshi, Rajkumar Hirani, Vidhu Vinod Chopra (3 Idiots)
C.K. Muraleedharan for 3 Idiots
Rajkumar Hirani, Abhijat Joshi for 3 Idiots
Best Background Score
Sanjay Wandrekar, Atul Raninga, Shantanu Moitra for 3 Idiots
Rajkumar Hirani for 3 Idiots
Best Sound Recording
Bishwadeep Chatterjee, Nihal Ranjan Samel for 3 Idiots
Best Song Recording
Bishwadeep Chatterjee, Sachi K Sanghvi for 3 Idiots
Best Sound Re-recording
Anup Dev for 3 Idiots
Bosco Martis, Caesar Gonsalves for Love Aaj Kal
Best Costume Designing
Anahita Shroff Adajania, Dolly Ahluwalia (Love Aaj Kal)
Best Art Direction
Sabu Cyril for Aladin
Best Special Effects (Visual)
Charles Darby - Eyecube Labs (Aladin)
Shyam Kaushal (Kaminey)
Best Make up Artist
Christien Tinsley, Domini Till (Paa)
Read All about IIFA Awards 2010 Click Here >>