The movie's narrative is woven around Rancho's philosophy of "Chak De India"-style leadership, which emphasizes creativity, innovation, and out-of-the-box thinking. Through Rancho's character, the film critiques the traditional Indian education system, which often prioritizes rote memorization over critical thinking and creativity.

"3 Idiots" tells the story of three friends, Rancho (Aamir Khan), Raju (Sharman Joshi), and Farhan (R. Madhavan), who meet while studying engineering at the prestigious Indian Institute of Technology (IIT). The film follows their journey as they navigate the challenges of engineering college, confront the harsh realities of the education system, and discover their true passions.

The movie's influence can also be seen in the many fan-made videos, remixes, and edits that circulate online. The film's music, composed by A. R. Rahman, has been particularly popular, with songs like "Malhari" and "Tu Hi Ho" becoming chart-toppers.