A leader in the field of neurosurgery, Krishna Kumar has devoted over four decades to the treatment of chronic pain and neuromotor conditions such as Parkinson's disease. He is known for his innovative techniques, which include the development of an implant that operates by electrically stimulating spinal nerves. This effectively modulates pain signals and provides relief for previously untreatable cases of chronic pain. He is highly sought after as an international speaker and consultant, and is praised as an educator and mentor in his capacity as clinical professor of neurosurgery at the University of Saskatchewan. Active in his community, he is one of the founders of the South Saskatchewan Hindu Temple.