Born Roger Timms in England in 1937, Mahadevananda came to India in 1969. Mahadevananda's interest in magic was sparked at the age of 9 and weekly postal lessons from the Boy's Magician's Club in England gave him the confidence to stage his first magic show at 11, in a disused horse stable at the back of his house. Performing magic continued during his stint at the RAF and during College. When he moved to India he decided to leave magic, and become a Sanyasi, metamorphosing Roger Timms to Swami Mahadevananda. However, he could be too long without magic and soon he decided to teach magic. His most prominent student is Junior Shankar. Mahadevananda performed mostly as table hopper which was completely unknown in his part of the country.