Listen to Nini Groinba online. Nini Groinba is a Kokborok language song and is sung by Sourabhee, Bobotush, Rajib Thomas, Kerala and Mili. Nini Groinba, from the album Yapri Dulnangma, was released in the year 2010. The duration of the song is 6:18. Download Kokborok songs online from JioSaavn.