Gopi Sunder born in a musical Family was an associate to the composer Ouseppachan for long time. Sunder's father was a friend of Ouseppachan, which made Sunder a leading member in the troup of the prolific composer. He used to play tabla for many shows in south and north India. Later he went on to make jingles and have scored about 5000 jingles, some of them with Rajeev Menon, who in eighties introduced world famous musician A. R. Rahman through his jingles. He was a keyboard programmer for noted music director duo Vishal-Shekhar in their works like Om Shanti Om and Bluffmaster. In the popular songs like "Aankhon mein teri'" (Om Shanti Om) and "Ek main aur ek tu hai" (Bluffmaster) keyboard programming was done by him. His break in films came when director Rosshan Andrrews approached him with an offer to compose the Background score for his movie Notebook which made him one of the most demanded background scorer in Malayalam films. Then he composed BGM for the superhit movie Big B, starring Mammootty, which lead to a big break in film industry for him and noted Director Sibi Malayil approached him for composing Soundtrack and BGM as well for his Mohanlal starrer Flash (2007 film). His next project as a composer was in Amal Neerad's big budget movie Sagar Alias Jacky Reloaded. His work in this movie was praised well by the audience. The songs he composed for Amal Neerad's Anwar, which rocked the charts for many continuous weeks, has made him one of the most sought after music directors. Later his song 'kanninima' from this movie Anwar, was detected to be plagiarised from the work 'rosa maria' of spanish band 'Chambao'.
Gopi Sundar got his first Filmfare Award for Best Music Director in the 58th Filmfare Awards South for Anwar (2010).