Dr. Paresh Doshi performed the first deep brain stimulation surgery for treatment resistant depression in the Asian-Australian continents. He is the director of neurosurgery and stereotactic and functional neurosurgery at Jaslok Hospital and Research Centre in Mumbai. The document discusses Dr. Doshi's experience performing DBS surgery for psychiatric disorders like OCD and depression, guidelines for patient selection, results from long-term studies showing response rates up to 75% at 3 years, and details a case study of a patient named Ben who underwent DBS surgery for treatment resistant depression.