Listen to Om Hanuman Gayatri Mahamantra online. Om Hanuman Gayatri Mahamantra is a Hindi language song and is sung by Suresh Wadkar. Om Hanuman Gayatri Mahamantra, from the album Mantra Sangrah Vol-2, was released in the year 2013. The duration of the song is 44:14. Download Hindi songs online from JioSaavn.