Guruswami Mudaliar was a renowned surgeon and was consulted by several famous people which included freedom fighters and political leaders. He performed the third surgery of a cancerous lump on
Ramana Maharishi's arm in August 1949. He also treated
Periyar several times in prison when he was not keeping good health. Others like
V.V. Giri,
Durgabai Deshmukh and
MS Subbulakshmi also extol the services of Guruswami in their interviews and autobiographies. Guruswami Mudaliar was widely known to be a past master at
percussion diagnosis. In one case, Guruswami Mudaliar was asked to treat a young woman with a mysterious illness. He asked her to lie on her stomach and, pulling up her blouse, he kept his left hand on her back and began his percussion treatment. Suddenly he stopped at one spot and taking out a copying pencil he drew a circle around that spot. He then summoned the other doctors and showed them that the spot inside the circle in her body was the cause of her illness. He had located an
abscess whose
congealing during daytime caused fever to the patient. Though none of the other doctors believed him initially, the
X-ray report confirmed the diagnosis was right. He prescribed
sulpha tablets to dissolve the abscess and successfully cured the patient. ==Ethical standpoints==