Aag Laga Kar Chhupne Wale" is a timeless romantic ballad from the 1974 Pakistani film "Dil Lagi", starring Nadeem and Shabnam. The song is sung by the legendary Pakistani singer Masood Rana, with music composed by the renowned Master Rafique Ahmed.

The song is a poignant expression of the pangs of love and longing. The lyrics, penned by the poet Riaz ur Rahman Saghar speak of the pain of hiding one's emotions, with the phrase "Aag Laga Kar Chhupne Wale" (Burning with passion, yet hiding it) becoming a metaphor for the intensity of the lover's feelings.

Masood Rana's soulful voice brings out the emotional depth of the lyrics, as he pours his heart out with a sense of vulnerability and desperation. The music, composed by Master Rafique Ahmed, is a perfect accompaniment to the song's theme, with a haunting melody that resonates with listeners even today.

The song's arrangement features a simple yet effective orchestration, with a focus on piano and flute playing that adds to the song's melancholic beauty. The iconic lyrics and memorable tune have made "Aag Laga Kar Chhupne Wale" a beloved classic in Pakistani music, and it remains a staple of any romantic playlist.

Overall, "Aag Laga Kar Chhupne Wale" is a masterpiece that has stood the test of time, and its beauty continues to captivate audiences to this day.