A. R. Rahman`s music is one of the major highlights of the just released 24` and fans are looking forward to the music of Achcham Enbadhu Madamaiyada` and 2.0` in the coming months. Now comes the news that the Oscar Nayagan has walked out of biggie.

Aamir Khan had signed Rahman and lyricist Prasoon Joshi for a new film titled Secret Superstar` and for the past year the duo had worked on the songs for the film. Aamir who was supposed to start the film directed by his former manager Advait Chandan in June this year has postponed it indefinitely due to his other commitments which left ARR and Prasoon no other choice but to detach from the project. It may be recalled that Rahman and Aamir have had super successful association in the past with films like Lagaan`, Rang De Basanti` and Ghajini`.