Arjun was born to Prem Menon and Usha. Arjun started learning Carnatic music under several gurus including Ajay Namboodiri and Prof. Ramamoorthy Rao. He completed his school education at Chinmaya Vidyalaya, Taylors Road in 2005 where he was awarded the Best Performer in Co-curricular activities and went on to complete his Bachelors in Electrical and Electronics Engineering from Sri Venkateswara College of Engineering in 2009. He also holds a PGDBA in Operations Management from SCDL, Pune. Arjun joined Cognizant in 2009 after completing his graduation. His music career started at a young age. He started performing carnatic music concerts across the country as a solo artiste and often accompanying his gurus. Arjun appeared on the television channel - Zee Tamil`s unplugged music show - "Isai Unplugged" in 2010. His voice first featured in the Kollywood movie Engeyum Kadhal in 2011 when he crooned the re-recording song Kulu Kulu Venpani Pola composed and penned by Harris Jeyaraj. Arjun continued singing chorus and track sessions for several top music directors including G.V. Prakash for movies like Saguni and Thalaiva for the next couple of years. During this period, he collaborated with several independent musicians and rendered his voice for several gospel and devotional albums. His playback debut came in 2014 with the song "Latcham Calorie" from the movie Yaan. Arjun is married to Preethi, a software professional.