Listen to Oi Dekha Jai online. Oi Dekha Jai is a Bengali language song and is sung by Ramkumar Chatterjee. Oi Dekha Jai, from the album Ramkumar Chatterjee 4 Pack, was released in the year 2014. The duration of the song is 6:03. Download Bengali songs online from JioSaavn.