He is married to Devi Saranya who is the daughter of Parameswara Prasad Nampoothiri and Usha Antharjanam; they have one child named Devang.
Deepankuran's paternal grandfather, Kannadi Illath Kesavan Namboothiri, was a folk singer, a Carnatic musician and a violinist.
In 1996, Deepankuran made his debut as playback singer in Desadanam under the guidance of his father who was the music director of the film.
He has also participated in many of the Music Therapy (an emerging concept in medical field) sessions all over India with the team of Swathi Thirunal Kalakendram Trust, Kerala.
He started his career by singing "Naava Mukunda Hare" alongside Manju Menon in the film Desadanam.
In 2015, Deepankuran was the composer in his father's directorial venture Mazhavillinattam Vare which revolves around a Pakistani cricketer who meets his admirer during his visit to India.