Listen to Aaj Tu Gair Sahi online. Aaj Tu Gair Sahi is a Hindi language song and is sung by R.D. Burman and Kishore Kumar. Aaj Tu Gair Sahi, from the album Unforgettable - Kishore Kumar, was released in the year 2014. The duration of the song is 6:35. Download Hindi songs online from JioSaavn.