Shankar-Ehsaan-Loy are an Indian musical trio consisting of Shankar Mahadevan, Ehsaan Noorani and Loy Mendonsa, who have provided music for several Indian films. They are amongst the most popular and critically acclaimed music directors of Hindi cinema. Their famous works include scores for movies such as 'Mission Kashmir', 'Dil Chahta Hai', 'Aalavandhan', 'Kal Ho Naa Ho', 'Bunty Aur Babli', 'Kabhi Alvida Naa Kehna', 'Don: The Chase Begins Again', 'Taare Zameen Par', 'Rock On!!', 'Wake Up Sid', 'My Name is Khan', 'Karthik Calling Karthik' and 'Housefull', 'Patiala House'.
Shankar Mahadevan, a software engineer, worked on Oracle Version Six and studied Western, Hindustani and Carnatic classical music. A leading playback singer with 'Pukar', 'Sapnay' and 'Biwi No.1' to his credit, he also composed 'Breathless'. Ehsaan Noorani studied music at the Musicians Institute in Los Angeles and worked with the like of Ronnie Desai and Louis Banks. He composed Alien Desire, did several jingles and like Loy, was part of a blues-and-acid jazz band. Loy Mendonsa is trained in Western classical and also learnt the rudiments of Indian classical music. He performed with several group bands, plays ('Godspell', 'West Side Story', 'Jesus Christ Superstar') and composed jingles and signature tunes ('Fauji', 'The World This Week').
Ehsaan was doing jingles and Loy was in Delhi before the union. Loy was writing for television then. The show 'Quiz Time' was his first work and Siddharth Basu gave him his first break. Then he did Prannoy Roy's 'The World This Week'. A few more shows came along and he also did theatre and Shahrukh Khan's Fauji. Loy had also worked as keyboardist with A. R. Rahman and Shankar had sung many famous tracks for him. Then he came to Bombay and started doing jingles. He hooked up with Ehsaan and they started playing with music. Ehsaan also created music for the hit sitcom Shanti. Then Shankar came and did a few parts on the Indian bit. Since then they have been working as a trio.