Listen to Oi Maa Gangaar Tirey online. Oi Maa Gangaar Tirey is a Bengali language song and is sung by Mahua Bandopadhyay. Oi Maa Gangaar Tirey, from the album Samarpan, was released in the year 2014. The duration of the song is 3:53. Download Bengali songs online from JioSaavn.