Listen to Bas Ek Yehi Vardaan online. Bas Ek Yehi Vardaan is a Hindi language song and is sung by Jaspal Singh and C. Arjun. Bas Ek Yehi Vardaan, from the album Karwa Chouth, was released in the year 1978. The duration of the song is 6:18. Download Hindi songs online from JioSaavn.