Farhan Akhtar started his career at an early age by working on films like Lamhe (1991) and Himalay Putra (1997) as an assistant director.
He made his writing and directorial debut with Dil Chahta Hai (2001) in 2001.
In 2008, Akhtar made his acting and singing debut in a musical film titled Rock On!!, for which he wrote the dialogues and also produced.
Source: IMDB, Wiki.