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It is a very old song, but very much a gold standard song. I have listened to this song for a long time and liked it very much. Sung by Hemant Kumar and Lata, this is such a lovely chayageet kind of song, ideal listening at sleep times, though one can enjoy it anytime, as befits any timeless song, which it certainly is.
Hasrat Jaipuri was the lyricist and Shakar Jaikishan composed the music. This song was picturised on Dev Anand and Usha Kiron ( anyone has any idea who she was ?) andthe movie was called Patita (1953). Few people may have heard of this movie, but this song has undoubtedly become an immortal song.