Listen to Om Hanuman Gayatri Mahamantra online. Om Hanuman Gayatri Mahamantra is a Hindi language song and is sung by Nandu Honap and Suresh Wadkar. Om Hanuman Gayatri Mahamantra, from the album Om Hanuman Gayatri Mahamantra, was released in the year 2001. The duration of the song is 44:12. Download Hindi songs online from JioSaavn.