Listen to Om Manglam Guru ....... Data Namoh Namah online. Om Manglam Guru ....... Data Namoh Namah is a Hindi language song and is sung by Rajesh Gupta, Kailash Mehta and Hemant Chauhan. Om Manglam Guru ....... Data Namoh Namah, from the album Om Manglam Guru Dutt Manglam, was released in the year 2005. The duration of the song is 25:16. Download Hindi songs online from JioSaavn.