[1][2] He was best known for collaborative works with neurologists Jacob Chandy, Balasubramaniam Ramamurthi and Baldev Singh and together they have been credited to be pioneers in development of epilepsy surgery in India.
Narasimhan was born in 1913, and around 1945 he sold his medical practice in India so he could go to the United States of America to further his studies.
He returned to India in 1948 and started his private practice setting up a neurosurgical nursing home and EEG laboratory and stayed in the residential areas of Kilpauk, Chennai.
[5][6] Dr. Balasubramaniam had set up the Department of Neurosurgery at the Government General Hospital, Chennai in 1950 and Narasimhan joined him as an honorary assistant surgeon.
During the neurosurgical procedures that Balasubramaniam under took, Narasimhan assisted him in EEG service and in later patient care.