Listen to Oru Thumbi Vannu online. Oru Thumbi Vannu is a Malayalam language song and is sung by K.J. Yesudas and K. S. Chithra. Oru Thumbi Vannu, from the album Aavani Poochendu, Vol. 7, was released in the year 2021. The duration of the song is 4:25. Download Malayalam songs online from JioSaavn.