He has been practicing medicine for over 33 years. Currently, Dr. R Manjunath is working with Manipal Hospitals. Apart from hospital affiliations, he has been working actively in various fields. He has been an active member of various organisations, including Karnataka Medical Council. He completed his MBBS from Bangalore University,. After that, he went on to do MD from Jawaharlal Nehru Medical College, Belgaum, and MD - Internal Medicine from Jawaharlal Nehru Medical College, Belgaum.