Listen to Oi Mahasindhur Opar Theke online. Oi Mahasindhur Opar Theke is a Hindi language song and is sung by Manna Dey. Oi Mahasindhur Opar Theke, from the album Bhalobasar Rajprasade - Manna Dey, was released in the year 2002. The duration of the song is 3:42. Download Hindi songs online from JioSaavn.