Danny Boyle's Slumdog Millionaire has become the fourth film along with Gandhi to get the highest number of Oscar awards.
The film, which tracks the journey of an 18-year-old boy from rags-to-riches, won eight Oscars out of the 10 categories it was nominated for.
The flick has not only earned the Best Director gong for Danny Boyle, but also the Best Film award.
It also bagged awards for Original score, Original song, Film Editing, Adapted Screenplay, Cinematography, and Best Sound Mixing.
Kate Winslet and Sean Penn walked away with the top honours for Best Actress and Actor for The Reader and Milk respectively.
Actor Health Ledger was honoured with the posthumous Oscar in the Supporting Actor for his role as the Joker in The Dark Knight.
Penelope Cruz won the Best Supporting actor gong for Woody Allen's Vicky Cristina Barcelona.
The 2009 Oscar winners are:
Danny Boyle, Slumdog Millionaire
Sean Penn, Milk
Kate Winslet, The Reader
Best Original Score
AR Rahman, Slumdog Millionaire
Best Original Song
Jai Ho, Slumdog Millionaire
Best Supporting Actor
Heath Ledger, The Dark Knight
Best Supporting Actress
Penelope Cruz, Vicky Cristina Barcelona
Anthony Dod Mantle, Slumdog Millionaire
Best Sound Mixing
Ressul Pookutty, Slumdog Millionaire
Simon Beaufoy, Slumdog Millionaire
Chris Dickens, Slumdog Millionaire