Listen to Om Ramdevay Namo........ Namo Namah - (Mantra) online. Om Ramdevay Namo........ Namo Namah - (Mantra) is a Hindi language song and is sung by Kailash Mehta and Hemant Chauhan. Om Ramdevay Namo........ Namo Namah - (Mantra), from the album Om Mangalam Ramdev Mangalam, was released in the year 2006. The duration of the song is 8:03. Download Hindi songs online from JioSaavn.