"Luka Chuppi" is a popular Hindi song from the movie Rang De Basanti, released in 2006. The song features the voices of A.R. Rahman and A.R. Rahman and is known for its emotional depth and poignant lyrics. It captures the feelings of loss and longing, resonating with many listeners. The music is composed by A.R. Rahman, who is renowned for his unique sound and ability to blend traditional and contemporary styles. The song's visuals showcase the beauty of friendship and the impact of memories, making it a memorable part of the film's soundtrack.