Listen to Raja Vidhya Raja Guhyam online. Raja Vidhya Raja Guhyam is a Kannada language song and is sung by B. K. Sumitra. Raja Vidhya Raja Guhyam, from the album Bhagavadgeetha Sarasudha, Vol. 1, was released in the year 1995. The duration of the song is 4:23. Download Kannada songs online from JioSaavn.