Since Roja hit movie screens in South India in 1992, A.R. Rahman has been redefining the country's widely popular film music. Generally regarded as the finest Indian film composer of his time (and certainly the most commercially successful), Rahman produced music for nearly 35 wide-screen releases during his first five years in the industry. He has worked with many of his country's brightest music stars and a growing list of international luminaries like Nusrat Fateh Ali Khan, Zakir Hussain, L. Shankar, Apache Indian, and David Byrne.

Born A.S. Dileep Kumar on January 6th, 1966, in Madras, India, Allah Rakha Rahman was exposed to music from the time he was a child, entered in classical piano studies by his parents at the age of four. At 16, he quit school and was following in his father's footsteps (K.A. Sekhar was a successful film musician, arranger, and conductor himself), working full-time as a session musician on soundtracks under the popular South Indian composer Illaiyaraja. The monotony soon grew tiring however, and at the suggestion of a colleague, Rahman tried his hand at television commercials, eventually composing over 300 jingles in just five years. It wasn't until 1989 that Rahman planted the first seeds of his film career. That year, he began acquiring the equipment and organizing the sound library for his Panchathan Record Inn. When Sharada Trilok's ad for Leo Coffee (for which Rahman penned the music) won her an award, she introduced the young composer to her cousin, Mani Ratnam. Impressed with his work, the director signed Rahman to compose the music for K. Balachander's 1992 film Roja. Rahman's score, a colorful, uncluttered combination of pop, rock, reggae, and his country's traditional music, reshaped the genre, winning him three awards for Best Music Director. Roja became the equivalent of an Indian crossover success. Originally filmed in South Indian Tamil, it was re-dubbed (and its soundtrack re-recorded) in Hindi, the language of North India's famous film center "Bollywood." His star on the rise, Rahman proceeded to compose music for six films in 1993 and nine in 1994 including the score for Ratnam's Bombay (1995), the story of a Hindu/Muslim marriage in a time of heated relations between the two cultures. Rahman's score displayed a characteristic (and appropriate) disregard for the confines of culture, be they Eastern or Western, once again mixing traditional and modern elements. Bombay was hugely successful and the movie's theme was featured on Talvin Singh's Soundz of the Asian Underground compilation. Rahman became the first Indian artist to sign with Sony Music, negotiating a three-year contract in 1997. His premier release for the label, Vande Mataram (his first collection of non-film music), was a tribute to India, commemorating 50 years of the country's independence. The album reached record stores in 28 countries on August 15th of that year. Rahman finally seemed poised on the brink of the international success he desired. Performances were booked in Europe, Canada, and the United States during the final years of the century and a session was arranged with singer David Byrne (owner of the Luaka Bop label and a Rahman fan). Andrew Lloyd Webber chose Rahman to compose the music for his Bombay Dreams, a musical based on the "Bollywood" film industry. The pair began work on the project in London during the second half of 2000.

Rahman has been involved in several projects aside from film. He made an album Vande Mataram (1996) on India's national song, singing the title song on the album. He followed it up with an album called Jana gana mana, a conglomeration of performances by many leading exponents/artists of Indian classical music. In addition to writing jingles for ads, he has composed several orchestrations for athletic events and T.V. and internet media publications, documentaries and short films.

In 2002, he composed his maiden stage production Bombay Dreams (2002) following a commission from musical theatre composer Andrew Lloyd Webber. Furthermore, Rahman, along with the Finnish folk music band Värttinä, composed the music for The Lord of the Rings theatre production. He composed the piece "Raga's Dance" for Vanessa Mae's album Choreography (2004).

In the last six years, he has performed in three world tours of his concerts to audiences in Singapore, Australia, Malaysia, Dubai, UK, Canada, and the US (Hollywood Bowl).[5] A two-disc soundtrack, Introducing A. R. Rahman, (2006) featuring 25 pieces he composed from his Tamil film scores was released in May 2006.

Rahman's interest in the works of Classical and Romantic period composers, Carnatic composers, early film composers and predecessors K. V. Mahadevan and Vishwanathan-Ramamoorthy of the Tamil film industry and others continued through his late teens. He further explored and trained in Carnatic music, Western classical, Hindustani music and the Qawalli style of Nusrat Fateh Ali Khan, in addition to numerous other styles. His interest and outlook in music is said to stem from his love of experimentation.[4][9] As a result, his scores have alternated from songs and themes composed covering a variety of genres, with unconventionally-grouped instruments, and different vocal styles being used and combined together in some of his film soundtracks, to more traditional orchestral themes with leitmotif techniques composed in others. Rahman's works often feature a mix of minimalist songs and evocative, thematic pieces, building on his differing chord progressions and rhythms. He has written scores and songs with new and varied melodic and percussive sounds from instruments of different music systems. This unique blend he pioneered would come to be known as his avant-garde sound.

Rahman (born Dileep Kumar) is the second of four children born to R. K. Shekhar and Kareema Begum (Kasthuri). He has three sisters, Rehana (Kanchana), Fatima Talat (Bala) and Israth. He is married to Saira and has three children - Khatija, Rahima and Amin. Rahman is an alumni of the PSBB Lake Area School, Nungambakkam, Chennai. His nephew G. V. Prakash Kumar is a composer in the Tamil film industry.Son of Rehana (Kanchana).