Rahman lost the Oscar for best original music composer duo of Trent and Atticus Ross Rezmor who won for "network", the prize for best original song went to Randy Newman, who won for "We Belong Together" in "Toy Story 3 ".
The composer, known as the Mozart of Madras, also played in the mega-event will be broadcast live worldwide.
Indian born film editor Tariq Anwar, nominated for an Oscar category for Best Editing for "The King's Speech", could not get the coveted statue is. He lost by Angus Wall and Kirk Baxter, who won for his "social network".
"King's Speech" walked away with the Cup - best film, best actor Colin Firth, best director Tom Hooper and the best writer David Seidler.
In 2009, Rahman has won two gold statuettes for best score and best song for "Slumdog Millionaire." It was the first Indian to bag Oscars.
Back home in India, where the awards were the television Monday morning, many woke up, and hopes to see at least one of Rahman get an Oscar.
"At least there was one. It is very disappointing," said Sumit Gupta, an engineer based in New Delhi.
